A) The frequencies of some alleles in an organism's genotypes must change during its lifetime.
B) The frequencies of each allele in an organism's genotype must remain constant within its lifetime.
C) The frequencies of some alleles in a population's gene pool must change over successive generations.
D) The frequencies of each allele in a population's gene pool must remain constant over successive generations.
Correct Answer: C
Solution :
Evolution may be described as the change in heritable characteristics of a population over successive generation. So, for evolution to occur, allele frequency must change for whole group of population over successive generation.
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