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plummule973Lv1
28 Sep 2019
Genetic drift tends to increase the homozygosity of apopulation, and if it were the only evolutionary process operating,any finite population would eventually become entirely homozygous.In practice, however, populations do not become entirelyhomozygous. Why not?
Select one:
a. New mutation provides a continual supply of new geneticvariation.
b. Balancing selection is always present to retain allelicdiversity.
c. Frequency-dependent selection is always present and increasesthe frequency of a rare allele.
d. None of the above
Genetic drift tends to increase the homozygosity of apopulation, and if it were the only evolutionary process operating,any finite population would eventually become entirely homozygous.In practice, however, populations do not become entirelyhomozygous. Why not?
Select one:
a. New mutation provides a continual supply of new geneticvariation.
b. Balancing selection is always present to retain allelicdiversity.
c. Frequency-dependent selection is always present and increasesthe frequency of a rare allele.
d. None of the above
Sixta KovacekLv2
28 Sep 2019
