Question

    In the heteromorphic system of

    self-incompatibility, what distinguishes the Distyly system from the Tristly system?
    A The number of genes involved Correct Answer Incorrect Answer
    B The type of flower morphology observed Correct Answer Incorrect Answer
    C The location of gene expression Correct Answer Incorrect Answer
    D The number of nuclei in pollen grains Correct Answer Incorrect Answer

    Solution

    In the heteromorphic system, Distyly refers to two types of styles and stamens, while Tristly indicates three positions for style and corresponding stamen lengths.

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