BIO 200LLB Lecture Notes - Fall 2018 Lecture 10 - Gregor Mendel, Pea, Gynoecium

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Deduction: if the hypothesis of evolution is correct, then we should see evidence of this in genetics. His paper in 1866 established the field of genetics. It is possible to cross breed plants just like animals . To cross breed he took the pollen from the male and placed it on the carpel of another plant. He discovered that the traits did not blend together. One trait seems to dominate the other trait. Discovered that seven traits portrayed the same thing with the dominant traits. The dominant traits were always more common than the recessive traits (75 percent dominant to 25 percent recessive) He concluded that the traits do not blend together in the offspring of two parents, therefore the blending hypothesis is incorrect. The factors that control trait maintain a discrete identity when passed from parent to offspring. Traits passed in the gametes; pollen (sperm) and eggs.

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