When the environment changes we expect
A) directional selection to occur.
B) stabilizing selection to occur.
C) the optimal phenotype to remain near the population's formerly adaptive average value.
D) the optimal phenotype to shift in a random manner.
Correct Answer:
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Q7: Before natural selection can operate upon a
Q8: Natural selection operates
A) directly on the genotype.
B)
Q9: A primary source of genetic variability is
Q10: A diploid parent produces haploid gametes; thus,
Q11: When environmental conditions are stable we expect
A)
Q13: When directional selection persists over time we
Q14: Gene flow is
A) a kind of genetic
Q15: A particular riparian population of spiders described
Q16: Two populations that are not completely isolated
Q17: Genetic drift
A) can be very important in
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