TIL that the ratio of male births to female births is 51/49%, and it's thought the ratio of X and Y chromosomes in the man's sperm is most likely the cause. utswmed.org Submitted by iKickdaBass t3_122ba42 on March 26, 2023 at 4:44 AM in todayilearned 37 comments 153
enigbert t1_jdqbz2p wrote on March 26, 2023 at 10:44 AM Reply to comment by [deleted] in TIL that the ratio of male births to female births is 51/49%, and it's thought the ratio of X and Y chromosomes in the man's sperm is most likely the cause. by iKickdaBass https://www.theguardian.com/science/2015/mar/30/female-embryos-more-likely-to-die-in-pregnancy-than-males-study-claims Permalink Parent 7
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