A: A gene pool consists of all alleles at all gene loci in all individuals in a population.
Q: What is gene flow?
A: Gene flow is essentially the movement of allels into and out of populations
Q: What do Hardy-Weinberg conditions include?
A: No migration, Large population size, No mutation, Random mating, No selection
1.that any one individual may be homozygous for only one allele of the one or more present in the population (at a given locus) or a given individual may be heterozygous at that locus
3. Population genetics is essentially the study of allele and genotype frequencies within populations of organisms
4.evolution is a genetic phenomenon so cannot be fully (or even well) understood without an understanding of Mendelian genetics
5. natural selection does act on individuals; their characteristics affect their chances of survival and reproductive success.
Sexual dimorphism and sexual selection.
Peacocks and peahens show extreme sexual dimorphism. There is intrasexual selection between competing males , followed by intrasexual selection when the females choose among the showiest males.
The Hardy-Weinberg law states that under certain conditions , the gene frequency of a population does not change from generation to generation. The population model described above predicts that gene frequencies will not change from one generation to the next even if there are more recessive alleles. he founder effect occurs when the gene frequency of a newly established population is somewhat different from the parental population. Genetic drift refers to random fluctuations in the gene frequency of a population.
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