Apentix/AP Biology/Unit 7: Natural Selection/Question
AP Biologyeasymcq1 pt

In a population of insects, a single gene with two alleles (A and a) controls coloration. Insects with genotype AA or Aa are green, while insects with genotype aa are brown. An environmental shift introduces a new predator that easily spots green insects, but cannot see brown insects. Which statement best explains how natural selection will act on this population?

Explanation

Core Concept

This is correct because natural selection favors the brown phenotype, which is determined by the 'aa' genotype. As brown insects survive and reproduce at higher rates, the frequency of the recessive 'a' allele will increase in the population over time.

Correct Answer

q3_phenotype

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