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the cell produced by the union of two gametes, before it undergoes cleavage.
Historical Examples

If this is true, the centrosome of the zygote nucleus must be entirely derived from that of the male pronucleus.
Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 Various

From such a cell (zygote), half male, half female, the body of every living organism has sprung.
Feminism and Sex-Extinction Arabella Kenealy

But if the basis is not there, no amount of education can transform that zygote into a mathematician.
Mendelism Reginald Crundall Punnett

The first change the zygote undergoes in all animals is what is generally called the segmentation or cleavage of the ovum.
Encyclopaedia Britannica, 11th Edition, Volume 9, Slice 3 Various

The resulting coupled cell or zygote divides into two, which again encyst.
Encyclopaedia Britannica, 11th Edition, Volume 13, Slice 2 Various

But when the zygote in its turn comes to form gametes, the partnership is broken and the process is reversed.
Mendelism Reginald Crundall Punnett

IX, X, show the formation of the zygote by fusion of the nuclei of the gametes.
Encyclopaedia Britannica, 11th Edition, Volume 6, Slice 5 Various

But the problem of the way in which characters are distributed from gamete to zygote and from zygote to gamete remained as before.
Mendelism Reginald Crundall Punnett

All these things are but the transfer from zygote to zygote of something extrinsic to the species.
Mendelism Reginald Crundall Punnett

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.
Mendelism Reginald Crundall Punnett

the cell resulting from the union of an ovum and a spermatozoon
the organism that develops from such a cell

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.

zy·got’ic (-gŏt’ĭk) adj.
The cell formed by the union of the nuclei of two reproductive cells (gametes), especially a fertilized egg cell.
zygote [(zeye-goht)]

The single cell that results from fertilization of an ovum by a sperm. After dividing several times, it implants in the uterus. It continues to divide, producing more cells and passing through the stages of embryo and fetus.


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  • Zygotic

    of or relating to a . having zygosity. Historical Examples Heterozygote (different yolk), a zygotic individual which contains both members of an allelomorphic pair. Applied Eugenics Paul Popenoe and Roswell Hill Johnson

  • Zyklon

    noun hydrogen cyanide used as a poisonous gas, esp. in Nazi concentration camps Contemporary Examples In the next case are photocopies of transit passes for the trucks that brought the cannisters of zyklon B pellets. My Visit To Hell Christopher Buckley January 29, 2009 Finally the empty canisters of zyklon B, perhaps a hundred or […]

  • Zymo-

    a combining form meaning “ferment,” “leaven,” used in the formation of compound words: zymology. combining form indicating fermentation: zymology zymo- pref. Fermentation: zymogenic. Enzyme: zymogram.

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