BIOL 1202 Chapter : Chapter 23
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Dr. steven pomarico, instructor localized group of individuals that belong to the same biological species. Remember that evolution is the change in gene frequencies in the population. Some variation is the result of heritable changes (mutation and/or genetic recombination) and some variations is uninheritable (see fig 23. 3) >>>>>>variation between populations (can be discrete or continual) Population of the same organism can show variations. The variation between populations can be discrete or continual. Frequently continual variation in a population will exist as a cline (see fig 23. 5) 2 how populations change genetically over time a graded variation in a trait that parallels a gradient in the environment. >>>>>>the integration of darwinism (evolution) and mendelism (genetics) When the field of evolution (and the study of populations) merged with genetics, the science of population genetics was formed. Natural selection is the primary mechanism for evolutionary change. >>>>>>a population has a genetic structure defined by its gene pool.
