> > In the last 190 million years, the number of genes on the Y has plummeted fr... | Hacker News

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		spockz on Oct 11, 2022 \| parent \| context \| favorite \| on: Microbes that cause cavities can form superorganis... > > In the last 190 million years, the number of genes on the Y has plummeted from more than 1,000 to roughly 50, a loss of more than 95 percent. How much of this has happened in the recent human history? Are we becoming less “manly”?

im3w1l on Oct 11, 2022 [–]

Not really. The y-chromosome started out as a tiny variation of the x-chromosome. So all those genes were duplicates of genes on the x-chromosome.

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