Jul 16
8

Nettie Stevens Google Doodle: The XY Sex Chromosomes

Today on Google’s home page is what looks like a scientist looking through a microscope at XY chromosomes. It is Nettie Stevens 155th birthday, she discovered the sex chromosomes, XY. She was born on July 7, 1861 in Vermont and passed at the age of 50 from cancer on May 4..

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Nettie Stevens Google Doodle: The XY Sex Chromosomes

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