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Nettie Stevens discovered XY intercourse chromosomes. She did not get credit because she had two X’s.
russian bride site Share this tale Share All sharing alternatives for: Nettie Stevens discovered XY intercourse chromosomes. She did not get credit because she had two X’s. During the turn associated with century that is 20th biologist Nettie Stevens ended up being driven to resolve a clinical secret which had perplexed mankind for millennia. The […]