Essays on Nettie Stevens

Nettie Stevens Nettie Stevens Nettie Maria Stevens was born(p) in 1861 in Cavendish,Vermont. She was an American life scientist and geneticist, whose research prove that chromosomes determine the sex of an organism. She perfect in only 2 years the four-year course at Westfield usual School in Massachusetts. Nettie graduated with the highest academic dozens in her class. She recieved her B.A. in 1899 and her M.A. in 1900 at Stanford. Nettie studied Tenebrio molitor beetles and lay down that unimpregnated eggs in fe manful beetles always take away an X chromosome. Sperm from male beetles contain either an X chromosome or a Y chromosome. She found that eggs fertilized by sperm cellatozoonatozoon carrying the X chromosome produce pistillate beetles. The combination of egg and Y-chromosome sperm produce male beetles. Edmund Beecher Wilson, a biologist from Columbia University in New York City, made this alike (p) discovery at astir(predicate) the equivalent time as Nettie. Nettie besides e...If you want to sound a full essay, order it on our website: OrderEssay.net

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