11:216:269 Lecture Notes - Lecture 1: Petri Dish, Nikolaas Tinbergen, Valine
9 Nov 2016
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Persist: what is the evolutionary origin and benefit of this behavior. Inherited = trait/character encoded in dna that is passed down from one generation to another (parent to offspring) Inherited genes > that allow you to learn. Genes involved in behavior > many genes: change > change in the dna sequence > affect amino acids >gene > protein. > mutation = specific dna sequence that determines a phenotype (physical characteristics = fur color) that is chemically changed or miscopied > produce genes that are different in offspring. Mutations > neutral mutation: attached vs. unattached earlobes. Advantageous mutations > better than the parents. Humans 1 in 1,000 nucleotides is different between 2 humans: 3 billion base pairs or 3 million nucleotide differences, time = millions of years. Species = individuals that have the potential to interbreed and produce live fertile viable offspring.
