Genetic Variation - chuck test 3 Flashcards
Genetic Diversity
different genetic combinations in an gene pool
Gene pool
total genetic makeup (alleles) in an interbreeding population
Evolution
the change in characteristics of a population over time
Natural Selection
the name for the process by which beneficial phenotypes in a population tend to survive and reproduce while unfavourable phenotypes tend to be lost
Bottleneck effect
Is where there is a large reduction in a population due to an environmental change (natural disasters) or human actions
Founders effect
Founders effect is when a small group of a population is geographically isolated from the original population or emigrate somewhere else
Gene flow
is the process in which individuals emigrate (leave) out of the population or immigrate (arrive) into the population
Genetic drift
the frequency of alleles change due to chance, rather than selective pressures