Newsgroups: sci.bio
Path: utzoo!rising
From: rising@utzoo.uucp (Jim Rising)
Subject: sex ratios in birds
Message-ID: <1988Apr2.172116.23796@utzoo.uucp>
Organization: U of Toronto Zoology
Date: Sat, 2 Apr 88 17:21:16 GMT

It was kindly pointed out to me in a letter that the differences
in sizes of sex chromosomes could not effect sperm mobility in 
birds because the males are the homogametic sex--all sperm carry
the W chromosome.  Stupid of me.

--Jim Rising
-- 
Name:   Jim Rising
Mail:   Dept. Zoology, Univ. Toronto
        Toronto, Ontario, Canada    M5S 1A1
UUCP:   {allegra,ihnp4,linus,decvax}!utzoo!rising