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