mechanisms of evolution (9.1)

Question 1

factors that change allele frequences in populations

Answer 1

-allele frequencies are the number of copies of an allele comoared to the total number of alleles in a population
-when the frquency of an allele changes, microevolution has occured
-there are 5 common factors thta lead to change…
A. mutation
B. gene flow (migration)
C. non random amting
D. genetic drift
E. natural selection

Question 2

A. mutation

Answer 2

randomly introduces new genetic variation into a population

Question 3

B. gene flow

Answer 3

-the net movement of alleles from one pop to another as a reuslt of the migration of individuals
-occurs between two different interbreeding populations

Question 4

C. non random mating