EEB214H1 Lecture Notes - Lecture 6: Heritability, Genetic Variation, Vaginal Septum
20 Oct 2012
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Context rather than memory, don"t need the date or name. Darwin noticed patterns that is hard to explain across continents. He notice that difference between animals found on the atlantic end of island and pacific side of the island. Placental mammals- one penis and vagina, whereas marsupials have double vagina and penis. Continental islands were once connected to lands, whereas oceanic islands were never connected to the main lands, formed after volcanic. Can never find amphibians in oceanic islands-- cant survive in salty water. We are good at selecting the things we eat. Artificial selection- for instance cows that produces huge amounts of milk. 1) bristle number- take fruit fly that has these bristles, we take from the population we see variation from how many bristles they may have. If you have one generation, if you just take ones that has least bristles, and you breed them and you can end having about.
