Y Chromosome - Genome.gov
Jul 22, 2021 · All individuals carrying a Y chromosome are related through a single XY ancestor who (likely) lived around 300,000 years ago. The Y chromosome contains a "male-determining gene," the SRY gene, that causes testes to form in the embryo and results in development of external and internal male genitalia. If there is a mutation in the SRY gene, the ...
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