POPULATION GENETICS

Question 1

change in allele frequencies in a population over generations

Answer 1

Microevolution

Question 2

how frequently an allele appears in a population

Answer 2

ALLELE FREQUENCY

Question 3

process by which chance events cause allele frequencies to flunctuate unpredictably from one generation to another; significant in small populations, causes a loss of genetic variation

random

Answer 3

GENETIC DRIFT

Question 4

when few individuals become isolated from a larger population, smaller group may establish a new population whose gene pool is different from a source population

Answer 4

FOUNDER EFFECT

Question 5

When a population’s size is greatly reduced, causing some alleles to be overrepresented, underrepresented or absent

Answer 5

BOTTLENECK EFFECT

Question 6

when individuals with certain inherited characteristics are more likely than other individuals of the same sex to mate; Individuals with more “attractive” traits reproduce

Answer 6

SEXUAL SELECTION

Question 7

random, but contribute to evolution; ultimate source of genetic variation and new phenotypes; provide phenotypes on which natural selection acts

Answer 7

MUTATION

Question 8

Transfer of alleles into or out of a population due to the movement of fertile individuals or their gametes; allele frequencies change when individuals join or leave a population

Answer 8

GENE FLOW