BIO 358 Lecture Notes - Lecture 4: Gametogenesis, Spermatogenesis, Oogenesis
28 Feb 2017
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Document Summary
How and how fast natural selection works in sexual animals. Genetic information: builds behaviors, playing the odds in a head-to-head competition strategy game of replication with other variants in behaviors built by genes. Common misconceptions: the present vehicles in time are an overall improvement from past times in history. No, what is a birth defect in one environment can be selected for in a different environment: newer versions in time are better, more advanced. No, selected-for strategy in the past that survived to the present, but could be selected against in the present: evolution is always slow. It depends on strength of selection: it all about generation of variation. No, variation always present, it is all about strength of selection. Depending on strength of selection in that environment, natural selection can be very fast because of hidden or cryptic variation and historicity. When we simplify the pyramid just for animals, we get genetic design information >
