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Men would get on average 1/3 daughters (XX) and 2/3 sons (XY and YX). The YY offspring would not be viable. Women would only get daughters.
by stenl 12y ago
Men would get on average 1/3 daughters (XX) and 2/3 sons (XY and YX). The YY offspring would not be viable. Women would only get daughters.
- _almosnow 12y agoWe don't know what happens with YY, but yeah, at least a terrible syndrome.
- foobar2020 12y agoThe X chromosome codes quite a few crucial proteins [0], such as certain clotting factors (that's why women rarely get haemophilia), or retinal proteins (that's why women see more colors, and rarely get daltonism). It is pretty impossible for a fetus to develop with a YY genotype. [0] http://ghr.nlm.nih.gov/chromosome/X/show/Genes http://ghr.nlm.nih.gov/chromosome/X/show/Genes