BIOL 1001- Final Exam Guide - Comprehensive Notes for the exam ( 33 pages long!)
Document Summary
Gametes from individuals that live close to each other are more likely to combine than gametes from individuals that live farther apart. In vertebrates, insects, and other animals, females don"t mate at random, but actively choose certain males. Inbreeding: mating between relatives, relatives share a recent common ancestor. Individuals that inbreed are likely to share alleles they inherited from their common ancestor. Inbreeding increases homozygosity inbreeding takes alleles from heterozygotes and puts them into homozygotes changes genotype frequencies not allele frequencies. Inbreeding depression a decline in average fitness that takes place when homozygosity increases and heterozygosity decreases in a population. It does not cause evolution directly because it does not change allele frequencies. It can speed the rate of evolutionary change. Increases the rate at which purifying selection eliminates recessive deleterious alleles from a population. Intersexual selection between different sex (female choses the male based on honest signals, fitness trade-offs) Intrasexual selection between the same sex (male-male competition)
