In a certain species of feline, all males are much larger than females. Members of either sex that are of intermediate size struggle to find mates. What principle best describes this phenomenon?
Correct answer: D. Disruptive selection
- A. Bottleneck effect
- B. Directional selection
- C. Genetic drift
- D. Disruptive selection
Explanation
Disruptive selection is a form of natural selection occuring in a population where extreme traits are favoured over intermediate traits.
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About Evolution
Evolution describes heritable change in populations over generations through variation, natural selection and adaptation. Lamarckism explains inheritance of acquired characteristics, while Darwinism explains selection of favourable inherited variations; these historical explanations must not be confused with the modern genetic account of evolutionary change.
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