6.2 Population Genetics & Mechanisms in Evolution

Question 1

Bottlenecks

Answer 1

Where a gene pool is significantly reduced for some reason and a relatively small allele diversity remains.

Question 2

Genetic Drift

Answer 2

The constant changing of allele frequencies in a population over time ue to random mating

Question 3

Gene Flow

Answer 3

The movement of individuals and their alleles from one population to another

Question 4

Assortative Mating

Answer 4

An individual is more likely to mate with another that is similar in phenotype to itself.

Question 5

Disassortative Mating

Answer 5

Mate with another that has a different phenotype from itself

Question 6

Interbreeding

Answer 6

The mating of individuals that share a recent common ancestor

Question 7

Sexual Selection

Answer 7

Special case of natural selection that favors individuals with traits that increase their ability to obtain mates

Question 8

Female Choice

Answer 8

Females will often chose males with good alleles and have a healthy body.

Question 9

Male-Male Competition

Answer 9

Males competing with one another for mates

Question 10

Sexual Dimporphism

Answer 10

The tendency of the two sexes of a species to look different