Answer these questions selecting the appropriate option given below:
a) Both A and R are true and R is the correct explanation of A.
b) Both A and R are true and R is not the correct explanation of A.
c) A is true but R is false.
d) A is False but R is true.
Assertion: Sickle cell anemia is an autosomal recessive trait.
Reason: It is transmitted from parents to the offsprings even when one partner is the carrier for the disease.