The Syriac verb is remarkable for having entirely lost the original passive forms, such as in Arabic can be formed in every conjugation and in Hebrew are represented by the Pual and Hophal.
The stability of benzene is ascribed to this conjugation.'
That nuclear conjugation between cells ever takes place.
Further, most if not all forms of Sporozoa 'undergo sexual conjugation at some period or other of the life-cycle.
It has preserved in the conjugation and in the formation of the plural older forms than the classical Nahuatl itself.
The one in which sexual conjugation occurs.
To this life-cycle belongs the formation of sexual individuals and their conjugation on arrival in the gnat (Culex); the process is described as agreeing in the main, in both cases, with what has already been made known by MacCallum for another species of Halteridium.
Moreover, it is very probable that conjugation occurs soon after the arrival of the parasites in their specific invertebrate host; and this act may perhaps give rise to an aflagellar copula, which is gregariniform and comparable to an ookinete.
In a few species a sexual process is described, consisting in the conjugation of similar cells (Zygochytrium) or the union of two dissimilar ones (Polyphagus).
In Schizosaccharomyces and Zygosaccharomyces, however, we have a fusion of nuclei in connexion with the conjugation of cells which precedes sporangium-formation.
It is an elementary introduction to the study of Hebrew, the first of its kind, in which only the most indispensable definitions and rules have a place, the remainder being almost wholly occupied by paradigms. Moses Kimhi was the first who made the verb paqadh a model for conjugation, and the first also who introduced the now usual sequence in the enumeration of stem-forms. His handbook was of great historical importance as in the first half of the 6th century it became the favourite manual for the study of Hebrew among non-Judaic scholars (1st ed., Pesaro, 1508).
The ordinary conjugation is formed quite differently.
T~tU!)O(j cause him to live, from Egyptian dltn1/2-f), and, in its periphrastic conjugation, the same forms of wn, be, and Iry, do.
An indefinite article has been formed, and in the conjugation of the verb a great simplicity sets in.
When two similar zoogametes fuse, the process is conjugation, and the product a zygospore (Gr. ?"vy6, yoke).
Reproduction by conjugation is also known as isogamy, by fertilization as oogamy.
Thus among Volvocaceae, a family of Protococcales, while in some of the genera (Chloraster, Sphondylomorum) no sexual union has as yet been observed, in others (Pandorina, Chlorogonium, Stephanosphaera, Sphaerella) conjugation of similar gametes takes place, in others still (Phacotus, Eudorina, Volvox) the union is of the nature of fertilization.
It is known that zoogametes, which usually conjugate, may, when conjugation fails, germinate directly (Sphaerella).
Among Conjugatae reproduction is effected solely by means of conjugation of what are literally aplanospores.
Among colonial Desmidiaceae, the break-up of the filament is a preliminary to this conjugation; otherwise the process is the same.
The zygospore becomes surrounded with its own wall, consisting finally of three layers, the outer of which is furnished with spicular prominences of various forms. In Zygnemaceae there is no dissolution of the filaments, but the whole contents of one cell pass over by means of a conjugation-tube into the cavity of a cell of a neighbouring filament, where the zygospore is formed by the fusion of the two FIG.
Fl Protosiphon, conjugation of stages of conjugation.
In Sirogonium there is cell-division in the parent-cell prior to conjugation; and as two segments are cut off in the case of the active gamete, and only one in the case of the passive gamete, there is a corresponding difference of size, marking another step in the sexual differentiation.
The conjugation of similar gametes, arising from distinct plurilocular sporangia, was observed by Berthold in Ectocarpus siliculosus and Scytosiphon lomentarius in 1880; and these observations have been recently confirmed in the case of the former species by Sauvageau, and in the case of the latter by Kuckuck.
In these cases, however, the potential gametes may, failing conjugation, germinate directly, like the zoospores derived from unilocular sporangia.
The assertion of Areschoug that conjugation occurs among zoospores derived from unilocular sporangia, in the case of Dictyosiphon hippuroides, is no doubt to be ascribed to error of observation.
The second conjugation has for endings -of, -ot, -ddo, -ddi; -om, -och, -ddynt; the third -yf, -yt, -ddo, -ddi; -ym, -ych, -ddynt.
The verb displays a like abundance of trf mary forms with Sanskrit, but the conjugation by periphrasis lit only slightly developed.