Nettie Stevens Nettie Maria Stevens was born in 1861 in Cavendish,Vermont. She was an American biologist and geneticist, whose research proved that chromosomes determine the sex of an organism. She completed in only two years the four-year course at Westfield Normal School in Massachusetts. Nettie graduated with the highest academic scores in her class. She recieved her B.A. in 1899 and her M.A. in 1900 at Stanford. Nettie studied Tenebrio molitor beetles and found that …showed first 75 words of 313 total…

…showed last 75 words of 313 total…detailed investigations that she carried out have become incorporated in the general body of the subject. Nettie's name didn't become famous and not much credit was given to her for her discoveries, but she was given some credit for what she established. I think that Nettie Stevens is a brilliant woman. She made a very important discovery which effects even our lives today. Her contribution to the world expanded our knowledge of the human body.