what event would lead directional selectio What event would lead to directional

Question

what event would lead directional selectio What event would lead to directional selection? Select all that apply. a population's environment becomes increasingly heterogeneous a new allele arises that increases fitness a population's main food source changes heterozygotes have a fitness advantage over homozygotes Fitness is a measure of reproductive success. If an individual with genotype BB produces. 6 off spring, and a heterozygous individual (Bb) produces 10 off spring, and a third individual with genotype bb produces 5 off spring, what is the fitness value for the individual with BB genotype? 1.1 1.0 0.5 0.5 0.4

Explanation / Answer

What event would lead to directional selection?

Ans. b) A new allele arises that increases fitness

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