Nettie Stevens (1861-1912): The Unsung Pioneer Who Unlocked the Secret of Sex Determination
Nettie Maria Stevens (1861–1912), an American geneticist, discovered the chromosomal basis of sex determination in 1905. Studying mealworm beetles, she found males produce sperm with either a large (X) or...
Sir Isaac Newton: The Man Behind Gravity, Motion, and His Timeless Laws
Early Life: Shadows and Genius In the quiet orchards of Woolsthorpe Manor, Lincolnshire, a young Isaac Newton pondered the fall of an apple – or so the legend goes. This...
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