NEET Biology Principle Of Inheritance And Variation Question Bank Assertion and Reason

  • question_answer
    Assertion : Haemophilia never occurs in women. Reason : Gene for haemophilia is located on X chromosome. [AIIMS 1994, 96]

    A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion

    B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion 

    C) If the assertion is true but the reason is false

    D) If both the assertion and reason are false

    E) If the assertion is false but reason is true

    Correct Answer: C

    Solution :

    Haemophilia never occurs in women because it is a recessive gene disease if both the sex chromosome\[{{X}^{h}}{{X}^{h}}\], it will be lethal i.e. such female die before birth. Its gene is never found on chromosome Y.


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