New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    The source of Xa-21 gene in rice

    is:
    A O. Sativa Correct Answer Incorrect Answer
    B O. Nivara Correct Answer Incorrect Answer
    C O. longistaminata Correct Answer Incorrect Answer
    D O. Minuta Correct Answer Incorrect Answer

    Solution

    The majority of the genes have been identified from the cultivated rice, i.e. Oryza sativa, some have been introgressed from related wild species like O. longistaminata (Xa21), O. rufipogon (Xa23 & Xa34t), O. minuta (Xa27 & Xa351), O.

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