Natural selection can amplify or diminish variations that are?
Correct answer: A. Heritable
- A. Heritable
- B. Non-heritable
- C. Both A and B
- D. Acquired
Explanation
The correct answer is heritable. Natural selection acts on variations that are genetically encoded, allowing these traits to be passed down to future generations. This process can increase or decrease the prevalence of these traits in a population over time. Non-heritable and acquired traits do not have a genetic basis and, therefore, do not play a role in evolutionary processes driven by natural selection. Option B and D traits cannot be affected by natural selection, and Option C is incorrect because natural selection does not act on non-heritable 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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