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A comment on UK to allow babies from three people. Parent comment

Re:UK to allow babies from three people by stenl on Tuesday February 03, 2015 @10:24PM (#8995161)
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.
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Re:UK to allow babies from three people by _almosnow on Tuesday February 03, 2015 @11:15PM (#8995265)
We don't know what happens with YY, but yeah, at least a terrible syndrome.
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Re:UK to allow babies from three people by foobar2020 on Wednesday February 04, 2015 @04:23AM (#8995977)
The 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

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