Question

    The genetic cause(s) of heterosis include:

    A Dominance Correct Answer Incorrect Answer
    B Overdominance Correct Answer Incorrect Answer
    C Epistasis Correct Answer Incorrect Answer
    D All of these Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Heterosis arises from dominance (masking deleterious alleles), overdominance (heterozygote advantage), and epistasis (gene interactions).

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