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    Question

    In rice, assume that a recessive gene "a” is

    responsible for resistance to BLB. This gene is present on chromosome #1. A monosomic resistant line for chromosome #1 is crossed with normal susceptible line. The phenotype of F1 plants will be
    A all plants resistant Correct Answer Incorrect Answer
    B all plants susceptible Correct Answer Incorrect Answer
    C 50% plants resistant and 50% plants susceptible Correct Answer Incorrect Answer
    D 75% plants resistant and 25% plants susceptible Correct Answer Incorrect Answer

    Solution

    The correct answer is C

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