A couple, both carriers for the gene sickle cell anaemia planning to get married, want to know the chances of having anaemic progeny ?
(A) 100%
(B) 75%
(C) 50%
(D) 25%
Correct Option- (D) 25%
Explanation -
A marriage between two carriers of sickle cell anaemia will produce normal, carrier and anaemic progeny in 1:2:1 ratio