For two statements are given- one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below:

Both A and R are true, and R is correct explanation of the assertion.
Both A and R are true, but R is not the correct explanation of the assertion.
A is true but R is false.
A is false but R is true.

Assertion: A child which has inherited X chromosome from father will develop into a girl child.
Reason: Girl child inherits X chromosome from father and Y chromosome from mother.

Question

For two statements are given- one labelled Assertion (A) and the other labelled Reason (R). Select the correct answer to these questions from the codes (a), (b), (c) and (d) as given below:

Both A and R are true, and R is correct explanation of the assertion.
Both A and R are true, but R is not the correct explanation of the assertion.
A is true but R is false.
A is false but R is true.

 Assertion: A child which has inherited X chromosome from father will develop into a girl child.
 Reason: Girl child inherits X chromosome from father and Y chromosome from mother.

Shiksha Nation · Accepted Answer

(c) A is true but R is false.
Explanation:
Father produces two types of sperms, one with X and one with Y chromosome, whereas mother produces all egg with X chromosome. Zygote that inherits X chromosome from father has XX chromosomes and develops into baby girl, whereas zygote which inherits Y chromosome from father has XY chromosomes and develops into baby boy.

Verified Answer

Verified Answer