Nettie Stevens discovered XY sex chromosomes. She did not get credit because she had two X’s.

Nettie Stevens discovered XY sex chromosomes. She did not get credit because she had two X’s. Share this tale Share All sharing choices for: Nettie Stevens discovered XY intercourse chromosomes. She did not get credit because she had two X’s. During the change regarding the century that is 20th biologist Nettie Stevens was driven to […]

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