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    Question

    Which of the following stages of black rust are found on

    alternate host?
    A 0 and I Correct Answer Incorrect Answer
    B II and III Correct Answer Incorrect Answer
    C IV and 0 Correct Answer Incorrect Answer
    D All of these Correct Answer Incorrect Answer

    Solution

    The aecial(I)  and pycnial spores (0) are found on the alternate hosts.

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