ANTH 1001 Study Guide - Midterm Guide: Genetic Drift, Meiosis, Heritability
Document Summary
Darwin"s theory of natural selection: reproductive potential of a population is great, but actual population size remains stable, resources in the environments are in limited supply; there is competition among individuals for the resources, biological variation is normal in a population, any hereditary variation that allows an organism even a slight advantage in competition for resources will be perpetuated. Differences between mitosis and meiosis: mitosis produces 2 daughter cells; meiosis produces 4 daughter cells, mitosis has a diploid chromosome number in daughter cells; meiosis has a haploid chromosome number, mitosis has identical genetic structure of daughter to parent cell and to one another; meiosis has a different genetic structure, mitosis has a result of exact duplication; meiosis has (virtually) infinite genetic variability (the variability of meiosis is shown in the chart below) (there are about 70 trillion different types of sex cell possibilities.
