population genetics-2.2 - Lecture summary Population Genetics I Overview Mendel's work focused on the transmission of variability from parents to

Lecture summary: Population Genetics I. Overview Mendel's work focused on the transmission of variability from parents to offspring. In levels of biological organization, this process is occurring at the organism level. Now we turn to the transmission of genetic variability at the population level. We will first examine some genetic properties of populations, then we will set up a condition in which there is no genetic change in a population, i.e. there is no microevolution. Finally, we will examine different evolutionary processes in populations. II. A population genetic structure is defined by gene pool allele and genotype frequencies A. A population is composed of individuals of same species, occupying an area, subject to same environment, interbreeding B. The gene pool is the population of genes in this population of individuals C. Genotype frequencies are the proportions of occurrence of different allele combinations in the population 1.