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fertilized

fertilized Sentence Examples

  • They have two fertilized eggs and they want final consent.

  • At this point, abandoning the two fertilized eggs might be a worse sin.

  • With the photos in her hands, the fertilized eggs were a thing of the past.

  • serere, to sow), the fertilized ovule of plants.

  • The fertilized egg-cell (oospore) forms a filamentous structure, the proernbryo, from a restricted basal portion of which one or more embryos develop, one only as a rule reaching maturity.

  • The body of a vascular plant is developed in the first place by repeated division of the fertilized egg and the growth of Develop- the products of division.

  • While thus carried about by the host-insect, the female is fertilized by the free-flying male, and gives birth to a number of tiny triungulin larvae.

  • For new varieties the flowers should be fertilized with a view to combine, in the seedlings which result from the union, the desirable qualities of the parents.

  • Males in nearly all species appear once a year, when the last female generation, the ovigerous generation, is fertilized, and a few large ova are produced to carry on the continuity of the species over the winter.

  • The offspring of the virgin females are in most of these instances females; but among the bees and wasps parthenogenesis occurs normally and always results in the development of males, the " queen " insect laying either a fertilized or unfertilized egg at will.

  • The segmentation of the fertilized nucleus results in the formation of a number of nuclei which arrange themselves around the periphery of the egg and, the protoplasm surrounding them becoming constricted, a blastoderm or layer of cells, enclosing the central yolk, is formed.

  • During pairing he thrusts the tip of these organs into the seminal vesicles of the female and the eggs are fertilized as they pass out of the oviduct.

  • 9), violent and ecstatic exercises, ceremonial acts of bowing and kissing, the preparing of sacred mystic cakes, appear among the offences denounced by the Israelite prophets, and show that the cult of Baal (and Astarte) included the characteristic features of heathen worship which recur in various parts of the Semitic world, although attached to other names.5 By an easy transition the local gods of the streams and springs which fertilized the increase of the fields became identified with 2 Compounds with geographical terms (towns, mountains), e.g.

  • Here the eggs are fertilized and here they segment so that the young embryos are formed within their mother's 9 body.

  • C, Transverse section of the The eggs of Limulus are fertilized in the sea after they have been laid.

  • The male possesses elaborate copulatory structures of a chitinous nature, and the eggs are fertilized in the female without even quitting the place where they are formed on the wall of the reticular gonocoel.

  • The eggs are fertilized, practically in the ovary, and develop in situ.

  • of Their causes are extremely difficult to trace in detail, but it appears that they are largely due to a " shaking up " of the living matter which constitutes the fertilized germ or embryo-cell, by the process of mixture in it of the substance of two cells - the germcell and the sperm-cell - derived from two different individuals.

  • Weismann has also ingeniously argued from the structure of the egg-cell and sperm-cell, and from the way in which, and the period at which, they are derived in the course of the growth of the embryo from the egg - from the fertilized egg-cell - that it is impossible (it would be better to say highly improbable) that an alteration in parental structure could produce any exactly representative change in the substance of the germ or sperm-cells.

  • Only a small proportion of these get fertilized, and still fewer ever emerge from the egg.

  • diameter), containing a fertilized ovum surrounded usually by many yolk-cells.

  • The fertilized ova, provided with yolk and a shell, are next transferred to the "uterus" along which they travel to the exterior.

  • The egg consists of a fertilized ovum and a mass of yolk-cells.

  • The female is fertilized by the male and three or four days later lays a single egg - the winter egg - and then dies.

  • only in order not to put the layer of soil fertilized by the sheep beyond reach of the plant.

  • The general view was, that the embryo originated in the ovule, which was in some obscure manner fertilized by the pollen.

  • Sprengel came very near to appreciating the meaning of cross-pollination in the life of plants when he states that "it seems that Nature is unwilling that any flower should be fertilized by its own pollen."

  • The female lays two kinds of eggs - " summer-eggs," which develop without fertilization, and " winter-eggs" or resting eggs, which require to be fertilized.

  • It may, however, well be that the capacity for wintering in the dry state has physiologically replaced the need for resistent fertilized eggs.

  • The thin-walled eggs are often termed "summer-eggs," the fertilized ones "winter" or "ephippial" eggs (by parity with the phyllopod Entomostraca, q.v.).

  • - Early Stages of division of the Fertilized Egg-cell in Nassa mutabilis.

  • As each city or district had its own Ba'al, the author of its fertility, the " husband " (a common meaning of ba'al) of the land which he fertilized, so there were many Ba'als, and the Old Testament writers could allude to the Ba`alim of the neighbouring Canaanites.

  • In Peronospora, Saprolegnia, &c., the ends of the branches swell up into sporangia, which develop zoospores in their interior (zoosporangia), or their contents become oospheres, which may be fertilized by the contents of other branches (antheridia) and so form egg-cases (oogonia).

  • Fertilized egg with the central uninucleate cell (o) surrounded by the oosphere and the fertilizing periplasm (p).

  • The I, Oogonium (og) with the an5, Fertilized oogonium sur theridial branch (az) applied rounded by two layers of to its surface.

  • Concerning the second question, the recent investigations of Buchner ascogenous hyphae with their asci represent the sporophyte since they are derived from the fertilized ascogonium.

  • mycelium ircdospores otachY' ar Mycelium aecidi'spores teleutospores (young) - mycelium SporoNtyte with conjugate nuclei GametohyEe with single nuclei teleutospores ?(mature) 8a ?; sporida ?m celium erm $ fertile cells Y sp (abortaitviae) (of aecidium) fertilized cells (of aecidium) and bears the basidiospores.

  • This remarkable double fertilization as it has been called, although only recently discovered, has been proved to take place in widely-separated families, and both in Monocotyledons and Dicotyledons, and there is every probability that, perhaps with variations, it is the normal process in Angiosperms. After impregnation the fertilized oosphere immediately surrounds itself with a cell-wall and becomes the oospore which by a process of growth forms the embryo of the new plant.

  • By the segmentation of the fertilized egg, now invested by cell-membrane, the embryo-plant arises.

  • Parthenogenesis, or the development of an embryo from an egg-cell without the latter having been fertilized has been described in species of Thalictrum, Antennaria and Alchemilla.

  • Thus in Erythronium and Limnocharis the fertilized egg may form a mass of tissue on which several embryos are produced.

  • The oosphere is in all cases fertilized while still within the oogonium, the antherozoids being admitted by means of a pore.

  • Coleochaete sp., fertilized egg tion.

  • The fertilized egg charged with food reserves rests for a considerable period, surrounded by its cortex, the whole having assumed a reddish-brown colour.

  • Suddenly the attraction ceases, and the oosphere is fertilized, probably at that moment, by the entry of a single antherozoid into the substance of the oosphere; a cell-wall is formed thereupon, in some cases in so short an interval as five minutes.

  • The first effect of fertilization is the occlusion of the trichogyne from the fertilized carpogonium.

  • The filaments arising from the carpogonia grow into long thin tubes, which fuse with special cells rich in protoplasm contents; and from these points issue isolated tufts of sporogenous filaments, several of which may form the product of one fertilized female cell.

  • In Naccaria, one of the Gelidiaceae, it is observable that the ooblastema filament, as the tube arising from the fertilized carpogonium has been called, fuses completely with a cell contiguous to the carpogonium before giving rise to the foraging filaments already refered to.

  • Polysiphonia sp., transverse section through a branch, and at spores arising from fertilized carpogonium.

  • Even among Bangiaceae the carpospores arise from the fertilized cell by division, while in all other Rhodophyceae the oospore, as it may be called, gives rise to a filamentous structure, varying greatly in its dimensions, epiphytic, and to a large extent parasitic upon the egg-bearing parent plant, and in the end giving rise to carpospores in the terminal cells of certain branches.

  • The doubling process is provided by the act of fertilization, where an antherozoid with the single number of chromosomes fuses with an oosphere also with the single number to provide a fertilized egg with the double number.

  • He finds that eight chromosomes appear in karyokinesis in the ordinary thallus cells, but sixteen in the gonimoblast filaments derived from the fertilized carpogonium.

  • This individuality is the result of the particular selection of qualities it receives from its parents, a selection that obviously differs in different cases, as, save in the case of "identical twins," which are supposed to be the product of a single fertilized ovum, no individual pair of brothers, or pair consisting of brother and sister, are alike.

  • They enacted the story of his birth and life and death; the Earth, the Mother, is fertilized only by an act of violence by her own child; the representative of the god was probably slain each year by a cruel death, just as the god himself died.

  • The summer crops (millet, sesame, figs, melons, grapes, olives, &c.) are fertilized by the heavy " dews " which are one of the most remarkable climatic features of the country and to a large extent atone for the total lack of rain for one half the year.

  • Dzierzon (181119(36) in 1848, it has been believed that the queen bee lays fertilized eggs in cells appropriate for the rearing of queens or FIG.

  • Dickel and others have lately claimed that fertilized eggs can give rise to either queens, workers or males, according to the food supplied to the larvae and the influence of supposed "sex-producing glands" possessed by the nurse-workers.

  • Weismann, however, doubts these conclusions, and having found a spermaster in every one of the eggs that he examined from workercells, and in only one out of 272 eggs taken from drone-cells, he supports Dzierzon's view, explaining the single exception mentioned above as a mistake of the queen, she having laid inadvertently this single fertilized egg in a drone instead of in a worker cell.

  • It is believed that from the nature of the cell in which she is ovipositing, the queen derives a reflex impulse to lay the appropriate egg - fertilized in the queen or worker cell, unfertilized in the drone cell, as previously mentioned.

  • Whether the fertilized egg shall develop into a queen or a worker depends upon the nature of the food.

  • In Behar it has begun to replace indigo, and some success was achieved in Orissa, Assam and Madras; but jute is a very exhausting crop, and requires to be planted in lands fertilized with silt or else with manure.

  • of Asmara, is the centre for a district (Bogos) fertilized by the upper course of the Anseba; Agordat, on the river Baraka, on the road from Keren to Kassala, is the centre of the Beni-Amer, Algheden and Sabderat tribes; Mogolo, on the lower Mareb, is the rendezvous of the Baria and Baza tribes.

  • The great boundary rivers flow through low-lying valleys fertilized by their overflow or percolation, while a high bank leads up to the central upland, which, though naturally dry and unproductive except where irrigated by wells, has been transformed by various canal systems. This favoured region may be regarded as the granary of upper India.

  • The ova are fertilized in the genital duct, and before their escape have undergone the earliest stages of segmentation.

  • long took off from the Breede River and fertilized a large area, with the result that Robertson ranks as the second richest district in the province.

  • In fresh-water culture the eggs thus fertilized may be at once distributed to the waters to be stocked, or they may be kept in special receptacles provided with a suitable stream of water until the fry are hatched, and then distributed, or again they may be reared in the hatchery for several months until the fry are active and hardy.

  • The earlier advocates of artificial propagation and fish-hatching seem to have been under the impression that the thousands of fry resulting from a single act of artificial propagation meant a corresponding increase in the numbers of edible fish when once they had been deposited in suitable waters; and also that artificial fertilization ensured a greater proportion of fertilized eggs than the natural process.

  • Of Phanerogams, only the Dryas octopetala covers small areas of the debris, interspersed with isolated Cochlearia, &c., and, where a layer of thinner clay has been deposited in sheltered places, the surface is covered with saxifrages, &c.; and a carpet of mosses allows the arctic willow (Salix polaris) to develop. Where a thin sheet of humus, fertilized by lemmings, has accumulated, a few flowering plants appear, but even so their brilliant flowers spring direct from the soil, concealing the developed leaflets, while their horizontally spread roots grow out of proportion; only the Salix lanata rises to 7 or 8 in., sending out roots I in.

  • The ova pass out of the mouth and are fertilized externally.

  • After the body of a spermatozoid has coalesced with the egg-nucleus the latter divides repeatedly and forms a mass of tissue which grows more vigorously in the lower part of the fertilized ovum, and extends upwards towards the apex of the ovum as a peripheral layer of parenchyma surrounding a central space.

  • altissima, the fertilized eggs grow into tubular proembryos, from the tip of each of which embryos begin to be developed, but one only comes to maturity.

  • In Ephedra helvetica, as described by Jaccard, no proembryo or suspensor is formed; but the most vigorous fertilized egg, after undergoing several divisions, becomes attached to a tissue, termed the columella, which serves the purpose of a primary suspensor; the columella appears to be formed by the lignification of certain cells in the central region of the embryo-sac. At a later stage some of the cells in the upper (micropylar) end of the embryo divide and undergo considerable elongation, serving the purpose of a secondary suspensor.

  • After the egg-cells have been fertilized by the non-motile male cells they grow into tubular proembryos, producing terminal embryos.

  • Spener died in 1705; but the movement, guided by Francke, fertilized from Halle the whole of Middle and North Germany.

  • The gorged and fertilized female quits her hold of the host, and falling to the ground, proceeds after a short delay to lay her eggs in some sheltered spot.

  • It may be regarded as derived from a wholly dependent sporogonium not unlike that of some of the simpler Bryophyta; the latter are assumed to have arisen from primitive Algal forms, in which, as the first step in the interpolation of the second generation in the life cycle, the fertilized ovum gave rise to a group of swarm spores, each of which developed into a new sexual plant.

  • On this view the origin of the sporophyte is looked for in the gradual development of sterile tissue in the generation arising from the fertilized ovum, and a consequent postponement of spore-formation.

  • Thus, De Vilmorin records the presence of turgid wheats among seedlings raised from a common wheat fertilized with the pollen of a hard variety, and spelt wheats among the descendants of a common crossed with a turgid wheat.

  • Wheat is grown year after year without rotation - except in a few cases - on a third or more of our wheat acreage; not one acre in fifty is directly fertilized for the crop, and only a minimum amount of attention is given to the betterment of seed stock.

  • - A, Raspberry (Rukus idaeus, order Rosaceae), being fertilized.

  • The lowland, or Tehama, is hot and generally sterile; it contains oases, however, near the foot of the mountains, fertilized and irrigated by hill streams and supporting many large villages and towns.

  • As the seed develops from the ovule which has been fertilized by the pollen, the essential structures for seed-production are two, viz.

  • Eggs produced in the autumn by fertilized females remain on the plant through the winter and hatching in the spring give rise to female individuals which may be winged or wingless.

  • In the autumn winged males appear, union between the sexes takes place and the females lay the fertilized eggs which are destined to carry the species through the cold months of winter.

  • Even now they waited for news that the eggs that had been taken from her body had been artificially fertilized.

  • There might not even be one fertilized egg, and even if there were two, pregnancy wasn't guaranteed.

  • They have two fertilized eggs and they want final consent.

  • At this point, abandoning the two fertilized eggs might be a worse sin.

  • The gestational carrier was prepared and ready to receive the fertilized eggs, so it would happen in the next day or so.

  • With the photos in her hands, the fertilized eggs were a thing of the past.

  • Eric Williams, author of Capitalism and Slavery, argued that colonialism had fertilized every root and branch of industrial capitalism.

  • various contrivances by which Orchids are Fertilized by Insects.

  • For example, research into the way genes control limb development in the fertilized chicken egg provides insight into how human limbs develop.

  • So they arranged to produce a number of fertilized embryos which were tested for compatibility with their daughter's DNA.

  • If the egg is not fertilized, however, resultant hormonal changes cause the endometrium to slip away and menstruation begins.

  • fertilized ovum rather than preventing conception is therefore wrong.

  • fertilized egg develops into a seed, which can then be dispersed by the plant.

  • That is to say the animals are fed on what is produced from the fields fertilized with manure.

  • fertilized with manure.

  • fertilized by sperm, travel down to and implant in the uterus.

  • Chinese cabbage in Austria is heavily fertilized to produce big heads.

  • If the egg was not fertilized, progesterone encourages the uterus to shed the lining, and the result is menstruation flow.

  • fertilized by sperm, travel down to and implant in the uterus.

  • hatchery eggs are fertilized by artificial insemination and incubated in large holding trays at freshwater hatcheries.

  • model organisms are beloved by researchers investigating developmental biology - the transformation of an organism from a fertilized egg into an adult.

  • All sexually reproducing organisms develop from a single fertilized oocyte by cell multiplication and differentiation.

  • It is the male element which fertilized the ovule.

  • The egg consists of an outer casing, or chorion, inside which is the females fertilized ovum.

  • Any form of birth control that destroys the fetus or fertilized ovum rather than preventing conception is therefore wrong.

  • Short-styled oxlip, by pollen of long-styled oxlip: 10 flowers fertilized, did not produce one capsule.

  • Short-styled primrose, by pollen of short-styled oxlip: 8 flowers fertilized, did not produce one capsule.

  • phytoplankton abundance was 10 times greater than outside the fertilized patch.

  • This means that any female flower can be fertilized by pollen from any male.

  • So we see how highly fertile these short-styled plants were when illegitimately fertilized with their own-form pollen by the aid of bees.

  • pollen of short-styled oxlip: 8 flowers fertilized, did not produce one capsule.

  • The initial segmentation of the embryo is dependent upon concentration biases in the fertilized egg.

  • If the egg is not fertilized by sperm, it dies and the egg and uterus lining are shed as a period.

  • serere, to sow), the fertilized ovule of plants.

  • - The fertilized ovum gives rise to a parenchymula, with solid endoderm, which is set free as a free-swimming planula larva, in the manner already described (see Hydrozoa).

  • The Archegoniatae are characterized by a well-marked alternation of gametophyte and sporophyte generations; the former bears the sexual organs which are of characteristic structure and known as antheridia (male) and archegonia (female) respectively; the fertilized egg-cell on germination gives rise to the spore-bearing generation, and the spores on germination give rise directly or indirectly to a second gametophyte.

  • The fertilized egg-cell (oospore) forms a filamentous structure, the proernbryo, from a restricted basal portion of which one or more embryos develop, one only as a rule reaching maturity.

  • The body of a vascular plant is developed in the first place by repeated division of the fertilized egg and the growth of Develop- the products of division.

  • While thus carried about by the host-insect, the female is fertilized by the free-flying male, and gives birth to a number of tiny triungulin larvae.

  • They are attracted to the flower by its colour or its perfume; they seek, collect or feed on its honey, and while so doing they remove the pollen from the anther and convey it to another flower, there to germinate on the stigma when its tubes travel down the style to the ovary where their contents ultimately fuse with the "oosphere" or immature egg, which becomes in consequence fertilized, and forms a seed which afterwards develops into a new plant (see article Angiosperms).

  • For new varieties the flowers should be fertilized with a view to combine, in the seedlings which result from the union, the desirable qualities of the parents.

  • Males in nearly all species appear once a year, when the last female generation, the ovigerous generation, is fertilized, and a few large ova are produced to carry on the continuity of the species over the winter.

  • The offspring of the virgin females are in most of these instances females; but among the bees and wasps parthenogenesis occurs normally and always results in the development of males, the " queen " insect laying either a fertilized or unfertilized egg at will.

  • The segmentation of the fertilized nucleus results in the formation of a number of nuclei which arrange themselves around the periphery of the egg and, the protoplasm surrounding them becoming constricted, a blastoderm or layer of cells, enclosing the central yolk, is formed.

  • During pairing he thrusts the tip of these organs into the seminal vesicles of the female and the eggs are fertilized as they pass out of the oviduct.

  • 9), violent and ecstatic exercises, ceremonial acts of bowing and kissing, the preparing of sacred mystic cakes, appear among the offences denounced by the Israelite prophets, and show that the cult of Baal (and Astarte) included the characteristic features of heathen worship which recur in various parts of the Semitic world, although attached to other names.5 By an easy transition the local gods of the streams and springs which fertilized the increase of the fields became identified with 2 Compounds with geographical terms (towns, mountains), e.g.

  • Here the eggs are fertilized and here they segment so that the young embryos are formed within their mother's 9 body.

  • C, Transverse section of the The eggs of Limulus are fertilized in the sea after they have been laid.

  • The male possesses elaborate copulatory structures of a chitinous nature, and the eggs are fertilized in the female without even quitting the place where they are formed on the wall of the reticular gonocoel.

  • The eggs are fertilized, practically in the ovary, and develop in situ.

  • of Their causes are extremely difficult to trace in detail, but it appears that they are largely due to a " shaking up " of the living matter which constitutes the fertilized germ or embryo-cell, by the process of mixture in it of the substance of two cells - the germcell and the sperm-cell - derived from two different individuals.

  • Weismann has also ingeniously argued from the structure of the egg-cell and sperm-cell, and from the way in which, and the period at which, they are derived in the course of the growth of the embryo from the egg - from the fertilized egg-cell - that it is impossible (it would be better to say highly improbable) that an alteration in parental structure could produce any exactly representative change in the substance of the germ or sperm-cells.

  • Only a small proportion of these get fertilized, and still fewer ever emerge from the egg.

  • diameter), containing a fertilized ovum surrounded usually by many yolk-cells.

  • The fertilized ova, provided with yolk and a shell, are next transferred to the "uterus" along which they travel to the exterior.

  • The egg consists of a fertilized ovum and a mass of yolk-cells.

  • The female is fertilized by the male and three or four days later lays a single egg - the winter egg - and then dies.

  • only in order not to put the layer of soil fertilized by the sheep beyond reach of the plant.

  • The general view was, that the embryo originated in the ovule, which was in some obscure manner fertilized by the pollen.

  • Sprengel came very near to appreciating the meaning of cross-pollination in the life of plants when he states that "it seems that Nature is unwilling that any flower should be fertilized by its own pollen."

  • The female lays two kinds of eggs - " summer-eggs," which develop without fertilization, and " winter-eggs" or resting eggs, which require to be fertilized.

  • It may, however, well be that the capacity for wintering in the dry state has physiologically replaced the need for resistent fertilized eggs.

  • The thin-walled eggs are often termed "summer-eggs," the fertilized ones "winter" or "ephippial" eggs (by parity with the phyllopod Entomostraca, q.v.).

  • - Embryo of Pisid- fertilized, and advance whilst still in ium pusillum in the diblastula this position to the glochidium phase stage, surface view (after Lanof development (fig.

  • - Early Stages of division of the Fertilized Egg-cell in Nassa mutabilis.

  • As each city or district had its own Ba'al, the author of its fertility, the " husband " (a common meaning of ba'al) of the land which he fertilized, so there were many Ba'als, and the Old Testament writers could allude to the Ba`alim of the neighbouring Canaanites.

  • In Peronospora, Saprolegnia, &c., the ends of the branches swell up into sporangia, which develop zoospores in their interior (zoosporangia), or their contents become oospheres, which may be fertilized by the contents of other branches (antheridia) and so form egg-cases (oogonia).

  • Fertilized egg with the central uninucleate cell (o) surrounded by the oosphere and the fertilizing periplasm (p).

  • The I, Oogonium (og) with the an5, Fertilized oogonium sur theridial branch (az) applied rounded by two layers of to its surface.

  • Concerning the second question, the recent investigations of Buchner ascogenous hyphae with their asci represent the sporophyte since they are derived from the fertilized ascogonium.

  • mycelium ircdospores otachY' ar Mycelium aecidi'spores teleutospores (young) - mycelium SporoNtyte with conjugate nuclei GametohyEe with single nuclei teleutospores ?(mature) 8a ?; sporida ?m celium erm $ fertile cells Y sp (abortaitviae) (of aecidium) fertilized cells (of aecidium) and bears the basidiospores.

  • This remarkable double fertilization as it has been called, although only recently discovered, has been proved to take place in widely-separated families, and both in Monocotyledons and Dicotyledons, and there is every probability that, perhaps with variations, it is the normal process in Angiosperms. After impregnation the fertilized oosphere immediately surrounds itself with a cell-wall and becomes the oospore which by a process of growth forms the embryo of the new plant.

  • By the segmentation of the fertilized egg, now invested by cell-membrane, the embryo-plant arises.

  • Parthenogenesis, or the development of an embryo from an egg-cell without the latter having been fertilized has been described in species of Thalictrum, Antennaria and Alchemilla.

  • Thus in Erythronium and Limnocharis the fertilized egg may form a mass of tissue on which several embryos are produced.

  • The oosphere is in all cases fertilized while still within the oogonium, the antherozoids being admitted by means of a pore.

  • Coleochaete sp., fertilized egg tion.

  • The fertilized egg charged with food reserves rests for a considerable period, surrounded by its cortex, the whole having assumed a reddish-brown colour.

  • Suddenly the attraction ceases, and the oosphere is fertilized, probably at that moment, by the entry of a single antherozoid into the substance of the oosphere; a cell-wall is formed thereupon, in some cases in so short an interval as five minutes.

  • The first effect of fertilization is the occlusion of the trichogyne from the fertilized carpogonium.

  • The filaments arising from the carpogonia grow into long thin tubes, which fuse with special cells rich in protoplasm contents; and from these points issue isolated tufts of sporogenous filaments, several of which may form the product of one fertilized female cell.

  • In Naccaria, one of the Gelidiaceae, it is observable that the ooblastema filament, as the tube arising from the fertilized carpogonium has been called, fuses completely with a cell contiguous to the carpogonium before giving rise to the foraging filaments already refered to.

  • Polysiphonia sp., transverse section through a branch, and at spores arising from fertilized carpogonium.

  • Even among Bangiaceae the carpospores arise from the fertilized cell by division, while in all other Rhodophyceae the oospore, as it may be called, gives rise to a filamentous structure, varying greatly in its dimensions, epiphytic, and to a large extent parasitic upon the egg-bearing parent plant, and in the end giving rise to carpospores in the terminal cells of certain branches.

  • The doubling process is provided by the act of fertilization, where an antherozoid with the single number of chromosomes fuses with an oosphere also with the single number to provide a fertilized egg with the double number.

  • He finds that eight chromosomes appear in karyokinesis in the ordinary thallus cells, but sixteen in the gonimoblast filaments derived from the fertilized carpogonium.

  • This individuality is the result of the particular selection of qualities it receives from its parents, a selection that obviously differs in different cases, as, save in the case of "identical twins," which are supposed to be the product of a single fertilized ovum, no individual pair of brothers, or pair consisting of brother and sister, are alike.

  • They enacted the story of his birth and life and death; the Earth, the Mother, is fertilized only by an act of violence by her own child; the representative of the god was probably slain each year by a cruel death, just as the god himself died.

  • The summer crops (millet, sesame, figs, melons, grapes, olives, &c.) are fertilized by the heavy " dews " which are one of the most remarkable climatic features of the country and to a large extent atone for the total lack of rain for one half the year.

  • Dzierzon (181119(36) in 1848, it has been believed that the queen bee lays fertilized eggs in cells appropriate for the rearing of queens or FIG.

  • Dickel and others have lately claimed that fertilized eggs can give rise to either queens, workers or males, according to the food supplied to the larvae and the influence of supposed "sex-producing glands" possessed by the nurse-workers.

  • Weismann, however, doubts these conclusions, and having found a spermaster in every one of the eggs that he examined from workercells, and in only one out of 272 eggs taken from drone-cells, he supports Dzierzon's view, explaining the single exception mentioned above as a mistake of the queen, she having laid inadvertently this single fertilized egg in a drone instead of in a worker cell.

  • It is believed that from the nature of the cell in which she is ovipositing, the queen derives a reflex impulse to lay the appropriate egg - fertilized in the queen or worker cell, unfertilized in the drone cell, as previously mentioned.

  • Whether the fertilized egg shall develop into a queen or a worker depends upon the nature of the food.

  • In Behar it has begun to replace indigo, and some success was achieved in Orissa, Assam and Madras; but jute is a very exhausting crop, and requires to be planted in lands fertilized with silt or else with manure.

  • of Asmara, is the centre for a district (Bogos) fertilized by the upper course of the Anseba; Agordat, on the river Baraka, on the road from Keren to Kassala, is the centre of the Beni-Amer, Algheden and Sabderat tribes; Mogolo, on the lower Mareb, is the rendezvous of the Baria and Baza tribes.

  • The great boundary rivers flow through low-lying valleys fertilized by their overflow or percolation, while a high bank leads up to the central upland, which, though naturally dry and unproductive except where irrigated by wells, has been transformed by various canal systems. This favoured region may be regarded as the granary of upper India.

  • The ova are fertilized in the genital duct, and before their escape have undergone the earliest stages of segmentation.

  • long took off from the Breede River and fertilized a large area, with the result that Robertson ranks as the second richest district in the province.

  • In fresh-water culture the eggs thus fertilized may be at once distributed to the waters to be stocked, or they may be kept in special receptacles provided with a suitable stream of water until the fry are hatched, and then distributed, or again they may be reared in the hatchery for several months until the fry are active and hardy.

  • The earlier advocates of artificial propagation and fish-hatching seem to have been under the impression that the thousands of fry resulting from a single act of artificial propagation meant a corresponding increase in the numbers of edible fish when once they had been deposited in suitable waters; and also that artificial fertilization ensured a greater proportion of fertilized eggs than the natural process.

  • Of Phanerogams, only the Dryas octopetala covers small areas of the debris, interspersed with isolated Cochlearia, &c., and, where a layer of thinner clay has been deposited in sheltered places, the surface is covered with saxifrages, &c.; and a carpet of mosses allows the arctic willow (Salix polaris) to develop. Where a thin sheet of humus, fertilized by lemmings, has accumulated, a few flowering plants appear, but even so their brilliant flowers spring direct from the soil, concealing the developed leaflets, while their horizontally spread roots grow out of proportion; only the Salix lanata rises to 7 or 8 in., sending out roots I in.

  • The ova pass out of the mouth and are fertilized externally.

  • After the body of a spermatozoid has coalesced with the egg-nucleus the latter divides repeatedly and forms a mass of tissue which grows more vigorously in the lower part of the fertilized ovum, and extends upwards towards the apex of the ovum as a peripheral layer of parenchyma surrounding a central space.

  • altissima, the fertilized eggs grow into tubular proembryos, from the tip of each of which embryos begin to be developed, but one only comes to maturity.

  • In Ephedra helvetica, as described by Jaccard, no proembryo or suspensor is formed; but the most vigorous fertilized egg, after undergoing several divisions, becomes attached to a tissue, termed the columella, which serves the purpose of a primary suspensor; the columella appears to be formed by the lignification of certain cells in the central region of the embryo-sac. At a later stage some of the cells in the upper (micropylar) end of the embryo divide and undergo considerable elongation, serving the purpose of a secondary suspensor.

  • As the result of fertilization, the fertilized nuclei of the megaspore become surrounded by a cell-wall, and constitute zygotes, which may attach themselves either to the wall of the megaspore or to the end of a pollen-tube (fig.

  • After the egg-cells have been fertilized by the non-motile male cells they grow into tubular proembryos, producing terminal embryos.

  • Spener died in 1705; but the movement, guided by Francke, fertilized from Halle the whole of Middle and North Germany.

  • The gorged and fertilized female quits her hold of the host, and falling to the ground, proceeds after a short delay to lay her eggs in some sheltered spot.

  • It may be regarded as derived from a wholly dependent sporogonium not unlike that of some of the simpler Bryophyta; the latter are assumed to have arisen from primitive Algal forms, in which, as the first step in the interpolation of the second generation in the life cycle, the fertilized ovum gave rise to a group of swarm spores, each of which developed into a new sexual plant.

  • On this view the origin of the sporophyte is looked for in the gradual development of sterile tissue in the generation arising from the fertilized ovum, and a consequent postponement of spore-formation.

  • Thus, De Vilmorin records the presence of turgid wheats among seedlings raised from a common wheat fertilized with the pollen of a hard variety, and spelt wheats among the descendants of a common crossed with a turgid wheat.

  • Wheat is grown year after year without rotation - except in a few cases - on a third or more of our wheat acreage; not one acre in fifty is directly fertilized for the crop, and only a minimum amount of attention is given to the betterment of seed stock.

  • - A, Raspberry (Rukus idaeus, order Rosaceae), being fertilized.

  • The lowland, or Tehama, is hot and generally sterile; it contains oases, however, near the foot of the mountains, fertilized and irrigated by hill streams and supporting many large villages and towns.

  • As the seed develops from the ovule which has been fertilized by the pollen, the essential structures for seed-production are two, viz.

  • Eggs produced in the autumn by fertilized females remain on the plant through the winter and hatching in the spring give rise to female individuals which may be winged or wingless.

  • In the autumn winged males appear, union between the sexes takes place and the females lay the fertilized eggs which are destined to carry the species through the cold months of winter.

  • The initial segmentation of the embryo is dependent upon concentration biases in the fertilized egg.

  • If the egg is not fertilized by sperm, it dies and the egg and uterus lining are shed as a period.

  • All the nutrients required for embryo development are already present within the fertilized egg, stored in the form of yolk protein molecules.

  • IVF (in vitro fertilizaton)-The father's sperm and the mother's egg are retrieved and placed together before placing the fertilized egg back into the mother's uterus.

  • Egg Donation-You may be able to receive an egg from a donor which will then be fertilized with your partner's sperm.

  • This creates the potential for two separate eggs to be fertilized at the same time.

  • Identical twins are formed when one fertilized egg is split into two during the first twelve days after the egg is fertilized.

  • This phenomenon is usually attributed to the timing of when the fertilized egg was split and may be identified in nearly 25 percent of identical twins.

  • A fraternal twin set is made when a woman releases two eggs, and each egg is fertilized by its own sperm (unlike identical twins, where one egg splits into two).

  • No matter the supplier, their will be regional taste differences since the fruit will have been raised in different soils under a wide variety of conditions, with blossoms fertilized by a variety of bees.

  • Some tulips will rebloom if they are planted at the proper depth in well-drained, properly fertilized soil and if the foliage is allowed to die back naturally and not trimmed while still green.

  • Once fertilized, the eggs continue their journey to the uterus where they will implant themselves at regular intervals in the uterine wall.

  • The female will continue to be in heat and allow subsequent breedings until the eggs release a chemical message that they have been fertilized.

  • During the first two weeks, the fertilized eggs, aka blastocytes, develop into embryos.

  • When you figure in the fact that the sperm can survive in the canal for a few days, some eggs could actually have been fertilized a day or more after the final breeding.

  • Since the male's sperm can live up to a week after delivery, breeding as soon as ovulation begins increases the chance that each ripened egg will become fertilized.

  • As you're thinking about when to plant fruit trees, pay attention to the way the particular variety is fertilized and pollinated.

  • Seed are planted closely and the raised beds are kept watered, fertilized and mulched.

  • If grass fed beef is not certified organic, it can be given growth hormones, antibiotics, and eat grass from a pasture that has been fertilized with synthetic fertilizers.

  • Progesterone-The hormone produced by the ovary after ovulation that prepares the uterine lining for a fertilized egg.

  • Fraternal twins develop from two separate ova released at the same time and fertilized by two separate sperm.

  • Identical twins represent the splitting of a single fertilized zygote (union of two gametes or male/female sex cells to produce a developing embryo) into two separate individuals.

  • In the instance of dichorionic-diamniotic twins, division of the fertilized egg occurs within 72 hours past fertilization, before the inner cell mass has developed.

  • The division of the fertilized egg in this case occurs nine to 13 days past fertilization or near the time of implantation in the uterus.

  • Progesterone-The hormone produced by the ovary after ovulation that prepares the uterine lining for a fertilized egg.

  • Contraceptive-A device or medication designed to prevent pregnancy by either suppressing ovulation, preventing sperm from passing through the cervix to fertilize an egg, or preventing implantation of a fertilized egg.

  • Fraternal, or dizygotic, twins occur when the mother produces two eggs in one monthly cycle and both eggs are fertilized.

  • Fertilized egg division which produces twins can either happen early or late in development.

  • Twins can also result from a fertilized egg that divides slightly later in development.

  • An IUD prevents the fertilized egg from implanting in the lining of the uterus and may have other effects as well.

  • Implantation-The process in which the fertilized egg embeds itself in the wall of the uterus.

  • If the ovum is fertilized by a sperm at this time, pregnancy occurs.

  • However, if a sperm does not fertilize the egg, the body no longer needs the uterine lining to support the fertilized egg.

  • Then the fertilized egg must travel to the woman's uterus (womb), where it lodges in the uterus lining and develops into a fetus.

  • Eggs that do not ripen fully cannot be fertilized.

  • Oral contraceptives also change the uterine lining so that a fertilized egg cannot lodge there to develop.

  • Conception occurs when the female egg (ovum) is fertilized by a the male sperm.

  • The infection affects the reproductive tract and causes pelvic inflammatory disease, infertility, and ectopic pregnancy (when the fertilized egg implants somewhere other than in the uterus).

  • Progesterone-The hormone produced by the ovary after ovulation that prepares the uterine lining for a fertilized egg.

  • It is not produced until implantation (when the fertilized egg attaches to the uterine wall).

  • An ectopic pregnancy is one in which the fertilized egg is implanted outside the uterus.

  • Since the fertilized egg is implanted in an area too small for a growing fetus to survive and it can endanger the life of the mother if the organ where the egg is implanted ruptures, medical care is mandatory.

  • If the egg is fertilized by a man's sperm, it will implant in the uterus and begin to grow into a baby.

  • Occasionally, a fertilized egg will implant in the fallopian tube and begin to develop there.

  • Identical twins are formed when one fertilized egg splits into two.

  • The fertilized egg splits between day 1-14.

  • In a normal pregnancy, the egg is fertilized by a man's sperm and then implants in the woman's uterus, where it develops into a baby.

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