Question

    To which one of the following common bread wheat (2n =

    42) belong:
    A Hexaploid Correct Answer Incorrect Answer
    B Tetraploid Correct Answer Incorrect Answer
    C Triploid Correct Answer Incorrect Answer
    D Diploid Correct Answer Incorrect Answer

    Solution

    Bread wheat (Triticum aestivum) is a hexaploid (2n = 6x = 42), derived as little as 30,000 years ago from a diploid species (2n =2x = 14), Triticum tauschii, and a tetraploid, durum wheat (2n = 4x = 28), Triticum durum. 

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