Biology · Genetics and Evolution
In a stable ecosystem, a sudden environmental change leads to directional selection. Over time, a new phenotype becomes dominant. Which of the following best explains this process?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Random mutation without natural selection
- 2Directional selection shifting allele frequency toward an extreme phenotype✓
- 3Stabilizing selection maintaining the mean phenotype
- 4Genetic drift occurring in a large population
Correct answer
Directional selection shifting allele frequency toward an extreme phenotype
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