________ tends to blur the effects of population expansions.
A) Mutation
B) Genetic drift
C) Gene flow
D) Founder effect
Correct Answer:
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Q17: Which of the following statements about the
Q18: Scientists conventionally divide human variation into which
Q19: Which of the following statements correctly describes
Q20: Different human groups
A) have the same potential
Q21: By searching DNA sequences for _ that
Q23: A new beneficial mutation causes a(n) _
Q24: A selection-mutation balance occurs when
A) mutation introduces
Q25: If the frequency of an allele is
Q26: Lactase persistence is controlled by
A) variation at
Q27: Variation may exist because environments have recently
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