If this is true, the centrosome of the zygote nucleus must be entirely derived from that of the male pronucleus.
From such a cell (zygote), half male, half female, the body of every living organism has sprung.
But if the basis is not there, no amount of education can transform that zygote into a mathematician.
The first change the zygote undergoes in all animals is what is generally called the segmentation or cleavage of the ovum.
The resulting coupled cell or zygote divides into two, which again encyst.
But when the zygote in its turn comes to form gametes, the partnership is broken and the process is reversed.
IX, X, show the formation of the zygote by fusion of the nuclei of the gametes.
But the problem of the way in which characters are distributed from gamete to zygote and from zygote to gamete remained as before.
All these things are but the transfer from zygote to zygote of something extrinsic to the species.
If the mathematical faculty has been carried in by the gamete, the education of the zygote will enable him to make the most of it.
1880, coined 1878 by German cytologist Eduard Strasburger (1844-1912), the widespread attribution to William Bateson being apparently erroneous; from Greek zygotos "yoked," from zygon "yoke" (see jugular).
zygote zy·gote (zī'gōt')
The cell formed by the union of two gametes, especially a fertilized ovum before cleavage.
The organism that develops from a zygote.