Which of the following is a consequence of genetic drift?
A.
An increase in genetic variation within a population
B.
A decrease in genetic variation within a population
C.
An increase in the mutation rate
D.
A change in allele frequency due to natural selection
Exam No：AP Biology Problem Set 2 Year：2024 Question No：AP Biology2024AP0230
Answer:
B
Knowledge points:
5.5 Environmental Effects on Phenotype
Solution:
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