chicken egg a unicellular structure?

Richard P. Grant rpgrant at
Thu Oct 10 08:35:53 EST 1996

In article <325BDF73.7AC7 at>, "Steve M. Brown" <smb at> writes:
> I can only figure this one out logically, but I could be wrong. Since a
> chicken egg is, indeed, an egg it is a gamete produced by meiosis, and
> it is prepared for fertilization from a sperm cell with half the
> chromosomes needed to produce a chicken. If the egg were multicellular,
> this would mean than several sperm could fertilize the egg, resulting in
> several chickens. We know this doesn't happen, so my guess is that the
> chicken egg is one cell, unless the other cells can't be fertilized for
> some reason.

I'd tend to agree.  The yolk and white are not cellular, IIRC.

Richard P. Grant MA DPhil      rpgrant at
Nuffield Department of Obstetrics and Gynaecology, University of Oxford.
No wonder I can't go to parties anymore.

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