Principle Of Inheritance And Variation Question 492
Question: Assertion : Haemophilia never occurs in women. Reason : Gene for haemophilia is located on X chromosome. [AIIMS 1994, 96]
Options:
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
Show Answer
Answer:
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.
BETA
