Question

Assertion (A): Sickle cell anaemia is an autosome linked genetically inherited disorder affecting many new born babies.

Reason (R): It is caused by substitution of valine by glutamic acid at the sixth position of the beta globin chain of haemoglobin molecule.

पर्याय

• Both assertion (A) and reason (R) are true, and reason is the correct explanation of assertion.

• Both assertion (A) and reason (R) are true, but reason is not the correct explanation of assertion.

• Assertion (A) is true but reason (R) is false.

• Both assertion (A) and reason (R) are false.

Answer 1

Assertion (A) is true but reason (R) is false.

Explanation:

Sickle cell anaemia is an autosomal inherited disorder, so the assertion is true. The reason reverses the amino-acid substitution: glutamic acid is replaced by valine at the sixth position.