Haryana PMT Haryana PMT Solved Paper-2000

  • question_answer
    Barr body in mammals represents :

    A)  all the heterochromatin in female cells

    B)  one of the two X - chromosomes in somatic cells of females

    C)  all the heterochromatin in male and female cells

    D)  the Y - chromosome in somatic cells of male

    Correct Answer: B


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