Which of the following statements concerning genetic variation is most accurate?
a the proces...
Which of the following statements concerning genetic variation is most accurate?
a the process of natural selection directly creates genetic variation
b changes in the environment of a population stimulate mutation and genetic change in that population
c genetic variation must first be present in a population before natural selection can act upon organisms in that population
d the higher the average heterozygosity in a population, the less genetic variation in the gene pool
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