ANTB15H3 Chapter Notes -Intelligent Design, Allele Frequency, Falsifiability
Document Summary
Tuesday september 11 lecture one & thursday september 13 lecture two. Mechanisms of evolution under domestication helped darwin understand mechanism of evolution in nature. Darwin studied the mechanisms that plant and animal breeders used to select for favourable traits. Can be found around the world (cultivation & weedy escapee) Domesticated tomatoes can still interbreed with some species of wild tomatoes. It was first cultivated by native americans and the early explores introduced the tomatoes to europe (where it began to spread globally) The wild tomato is small (less than a cm in length & weighs only a few grams) The domesticated tomato can now grow large (15cm in length and 1 kg in weight) Molecular explanation: on chromosome 2 tomatoes carry a gene known as fw2. 2, which encodes for a protein, which represses cell division. The size of the fruit depends on the amount of proteins being made. Cultivated fruits have fewer proteins, which results in a larger size.
