Talk:ZW sex-determination system

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I am not sure about the usage of this terminology, and request the editor(s) involved to provide citations. User:DGG 04:12, 1 January 2007 (UTC)

Which terminology? --Ķĩřβȳ♥ŤįɱéØ 10:48, 1 January 2007 (UTC)

Information regarding the homology of the platypus sex chromosomes and the eutherian sex chromosomes is old and incorrect. Further studies have revealed the platypus X chromosomes have a great deal of homology with the chicken Z yet no homology with the eutherian X chromosomes. Phisch Tarko (talk) 12:34, 6 April 2008 (UTC)

[edit] an aside

If I read this right, it means that "the birds and the bees" are actually quite unsuitable subjects for a human sexuality lecture. - Keith D. Tyler ¶ 21:54, 20 June 2007 (UTC)

[edit] Vice-versa

Last paragraph currently says:

Chromosomes in the ZW region in birds are autosomal in mammals, and vice-versa.

Does vice versa mean:

(All) autosomal chromosomes in mammals are in the ZW region in birds.

Surely not. After some cogitation, I thought maybe this:

Chromosomes in the XY region in mammals are autosomal in birds.

If so, vice versa is inappropriate. In any event , could someone make this clearer? Thanks. —johndburger 15:52, 21 May 2008 (UTC)