The wandering life of the larvae makes it uncerain whether any of the progeny of a given oyster-bed will settle within its area and so keep up its numbers.
Having crossed yellow and green seeded peas both ways, he found that the progeny resulted in all yellow coloured seeds.
Eny very unlike the parent, or a mixed progeny showing various degrees of divergence.
According to some, Niobe is the goddess of snow and winter, whose children, slain by Apollo and Artemis, symbolize the ice and snow melted by the sun in spring; according to others, she is an earth-goddess, whose progeny - vegetation and the fruits of the soil - is dried up and slain every summer by the shafts of the sun-god.
Hybrid plants may be again crossed, or even re-hybridized, so as to produce a progeny of very mixed parentage.
It is supplanting the Border Leicester as a sire of mutton sheep; for, although its progeny is slower in reaching maturity, tegs can be fed to greater weights in spring - 65 to 68 lb per carcass - without becoming too fat to be classed as finest quality.
Like most successful romances of chivalry, it had a numerous progeny, but its sequels, D.
The breeder bulbs and their offsets may grow on for years producing only self-coloured flowers, but after a time, which is varied and indefinite, some of the progeny "break," that is, produce flowers with the variegation which is so much prized.
French deism, the direct progeny of the English movement, was equally short-lived.
"He saw that they increased in size, divided, and became full of filiform spores, then ruptured and poured out their multitudinous progeny into the bodycavity of their insect host.
The tobacco flower is fortunately perfectly self-fertile, and by enclosing the flowers of selected plants in paper bags, so as to exclude all possibility of hybridization, progeny true to the type of the mother plant can be obtained.
For the exact determination of the last element the census affords no precise data, but affords material for various approximations, based either upon the elimination of the probable progeny of immigrants since 1790; on the known increase of the whites of the South, where the foreign element has always been relatively insignificant; on the percentage of natives having native grandfathers in Massachusetts in 1905; or upon the assumed continuance through the 19th century of the rate of native growth (one-third decennially) known to have prevailed down at least to 1820.
The third bride was sickly and unsympathetic, and from her Sigismund soon lost all hope of progeny, to his despair, for being the last male of the Jagiellos in the direct line, the dynasty was threatened with extinction.
In 1865 a male of the same species was introduced, but though a strong disposition to breed was shown on the part of both, and the eggs, after the custom of the Ratitae, were incubated by him, no progeny was hatched (Proceedings, 1868, P. 329).
Accordingly as the green or the yellow predominated in the progeny it was termed " dominant," while the colour that disappeared was called " recessive."
Here, again, a variation in the order, nature and number of the divisions, in itself simple, may result in symmetrical or correlated changes in all the progeny of the affected embryonic part.
The original six specimens received in 1864 at the Jardin des Plantes, which had been carefully kept apart from their progeny, remained in the branchiate condition, and bred eleven times from 1865 to 1868, and, after a period of two years' rest, again in 1870.
The deceased shah had a numerous progeny, and on his death his fifth son, Haidar Mirza, proclaimed himself king, supported in his pretensions by the Kizil-bash tribe of Ustujulu.
Formerly regarded as a distinct genus - the natural fate of all the various ' Brefeld has observed that a bacterium may divide once every half-hour, and its progeny repeat the process in the same time.
The progeny is a good generalpurpose Sheep, giving a large fleece of wool but only a medium quality of mutton.
In the progeny of these crossed wheats, especially in the second generation, much variation and difference of character is observable - a phenomenon commonly noticed in the descendants from crosses and hybrids, and styled by Naudin "irregular variation."
He died in 1780, and among other progeny left two famous sons, Woodpecker (1773), whose dam was Miss Ramsden (1760) by Cade, son of the Godolphin Barb, but descended also on the dam's side from the Darley Arabian and the Byerly Turk, and Highflyer (1774), whose dam was Rachel (1763) by Blank, son of the Godolphin Barb from a daughter of Regulus, also son of the Godolphin.
One special plant is selected each year from the Soo raised from the previous season's test plant, and in four years' time the progeny of this plant constitutes the " general crop."
P. Mudge for rats, that in a cross between a coloured individual of known gametic purity and an albino, the individuals of the progeny in either the first or second, or both generations, may differ, and that the difference in some cases wholly depends upon the albino used.
We may get a progeny very closely resembling it, yet each plant possessing a distinct individuality of its own; or we may get a pro.
The zoogloea is formed by active division of single or of several mother-cells, and the progeny appear to go on secreting the cell-wall substance, which then absorbs many times its volume of water, and remains as a consistent matrix, in which the cells come to rest.
It was also shown that exposure to light, dilution or exhaustion of the food-media, the presence of traces of poisons or metabolic products check growth or even bring it to a standstill; and the death or injury of any single cell in the filamentous series shows its effect on the curve by lengthening the doubling period, because its potential progeny have been put out of play.
We may therefore consider it settled that the different species of the group are now in that degree of physiological differentiation which enables them to produce offspring with each other, but does not permit of the progeny continuing the race, at all events unless reinforced by the aid of one of the pure forms.
The thin-skinned progeny of thoroughbred or Arab stock is too delicate to live unless when hand-fed - and hand-feeding is not according to custom.
Chastised the Roman nobles, subdued Romagna and the March, threatened Tuscany, and seemed to be upon the point of creating a Central Italian state in favor of his progeny, when he died suddenly in 1503.
These scales breed very rapidly; Howard states one may give rise to a progeny of 3,216,080,400 in one year.
When selection is being made for several characters at the same time, and also in hybridization experiments, where it is important to have full records of the characters of individual plants and their progeny, " score cards," such as are used in judging stock, with a scale of points, are used.
To prevent the breaking down of their properties, the necessary consequence of this law of inheritance, there is no doubt that infanticide was common among them, and that it extended to the male as well as the female progeny, but it has been put down by the Infanticide Rules, which provide for the registration of Jareja children.
The tapeworm, Taenia saginata, throws off eleven proglottides a day during its mature stage, and if this rate of increase were maintained for a year the total weight of its progeny would be about 550 grammes.
- Zooid of tinued by its progeny, and thus gives Plumatella, with exrise to the mature colony.
Nor was it, as in Schelling's earlier system, to be a collateral progeny with mind from the same womb of indifference and identity.
We may grant, indeed, that a moderate provision of material wealth is indirectly included, as an indispensable pre-requisite of a due performance of many functions as Aristotle conceives it - his system admits of no beatitudes for the poor; still there remain other goods, such as beauty, good birth, welfare of progeny, the presence or absence of which influenced the common view of a man's well-being, though they could hardly be shown to be even indirectly important to his " well-acting."
In the article Horseracing mention is made of some of the great horses of recent years; but the following list of the principal sires of earlier days indicates also how their progeny found a place among the winners of the three great races, the Derby (D), Oaks (0), and St Leger (L) Eclipse: Young Eclipse (D), Saltram (D), Sergeant (D), Annette (0).