For statements 117–121 select the best choice of the four
evolutionary processes listed below.
a. mutation
b. gene flow
c. genetic drift
d. natural selection
M 117. This is most likely to lead to the loss of genetic
variation in a small population.
E 118. This process produces new genetic variation within a
species.
M 119. This process can rapidly offset the effects of genetic
isolation when two populations come into secondary
contact.
M 120. The reduced contribution of one phenotype in
comparison to another to the next generation is an
example of this.
M 121. The occurrence of mimicry is best explained as the
ultimate result of this process.
Answers: 117. c, 118. a, 119. b, 120. d, 121. d
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