3 ms·

That's not the problem - if such a technique worked (it's been attempted in mice [1,2]), two males could produce XX or XY offspring, as you get X sperms and Y s

That's not the problem - if such a technique worked (it's been attempted in mice [1,2]), two males could produce XX or XY offspring, as you get X sperms and Y sperms. The restriction would be on two females, they could only combine to make XX. [1] http://www.ncbi.nlm.nih.gov/pubmed/6722870 http://www.ncbi.nlm.nih.gov/pubmed/6722870 [2] http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4123998/ http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4123998/

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 ago
  We don't know what happens with YY, but yeah, at least a terrible syndrome.
  - foobar2020 12y ago
    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 http://ghr.nlm.nih.gov/chromosome/X/show/Genes