The following questions are on natural selection: 1.A)Which of the following sentences best describes ‘gene flow’:…

The following questions are on natural selection:
1.A)Which of the following sentences best describes ‘gene flow’:
A) An animal moved from one place to another B) An animal moved
from its birth place to a new place C) An animal mated with an
animal from another place D) An animal mated with an animal from
the same place
B)Why is it useful in population genetics to consider the
concept of a ‘gene pool’? A) Evolution acts on a pool of
individuals in a population B) Evolution acts on the pooled allele
frequencies in a population C) Genes are pooled in their effect on
individuals D) Genes are pooled in their effects on populations