Question

    How many sex chromosomes are there in a normal human

    being?
    A Two Correct Answer Incorrect Answer
    B Eight Correct Answer Incorrect Answer
    C One Correct Answer Incorrect Answer
    D Four Correct Answer Incorrect Answer

    Solution

    The 23rd pair called sex chromosomes differ in males and females. Females have two copies of the X chromosome (XX), while males have one X and one Y chromosome (XY). Thus all non-gametic cells have 2 sex chromosomes in them.

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