At 8:43 PM -0500 8/27/99, Marco A. Achury P. wrote:
>Sorry, I'm not sure, but I think the cotyledon *is* endosperm, so
>polyploid tissue
>
NO. The cotyledon is a part of the embryo.
It is diploid (if the rest of the embryo
is indeed diploid). The endosperm is a
completely different entity. It is produced
in a separate syngamy event and is generally
polyploid (3N+).
ross
________________________________________________________________
Ross Koning | koning at ecsu.ctstateu.edu
Biology Department | http://koning.ecsu.ctstateu.edu/
Eastern CT State University | phone: 860-465-5327
Willimantic, CT 06226 USA | fax: 860-465-4479
____________________________|___________________________________
Electronic services composed and served from Macintosh hardware.