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viridiformica t1_jbkeika wrote

Reply to comment by Dr_Vesuvius in Is there a fertile creature with an odd number of chromosomes? by TheBloxyBloxGuy

Seems like it's still contentious, but since avian sex regulation appears likely to be dependent on having two copies of the Z chromosome to induce maleness, the W chromosome that females have is likely to be analogously expendable to the Y chromosomes - so you would see the same patterns just with the sexes flipped?

https://pubmed.ncbi.nlm.nih.gov/28911174/

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