How Sex Changed 2 - :September 14, 2011 Jaques Loeb:...

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::September 14, 2011 Jaques Loeb: mechanistic approach to life and though that everything could be described by chemical and physical laws - Worked with akinoderms (sea urchins) and tested that you didn’t need the fusion of a gamete (didn’t need sperm) to produce offspring by simply changing the chemicals in the environment - Proved you did not need tradition egg/sperm union to create life (parthanogenic birth in lower organisms) Gregory Pincus: performed parthenogenesis in mammals/father of birth control pill - Scientific career started when he performed envitro fertilization on rabbits; also claimed he had parthanogenic births in rabbits (generally accepted that he was successful in the 30s but in the 50s an Australian scientist claimed Pincus had not achieved it and that he had) - Became unpopular and his academic career at Harvard fell through - Margaret Sanger and Katherine McCormick asked him to develop a new form of contraception; had a synthetic drug (cheaper and easier to use than progesterone) that
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How Sex Changed 2 - :September 14, 2011 Jaques Loeb:...

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