If both parents are carriers for thalassemia, which is an autosomal recessive disorder, what are the chances of pregnancy resulting in an affected child?
(a) 50%
(b) 25%
(c) 100%
(d) no chance
Explanation:
Genotype of carrier parents is – Aa (male parent) × Aa (female parent)
AA → normal child (25%)
Aa → carriers child (50%)
aa →affected child (25%)
