Question

if both the parents are carriers for thalassemia which is an autosomal recessive disorder what are chances of pregnancy resulting in an affected child​

Answer 1

Answer: 25% chance of pregnancy resulting in an Affected child

Explanation: If both parents are carriers i.e. Aa and Aa (a denotes autosomal recessive), then the offspring might show genotype AA, Aa, Aa or aa on crossing parental generation.

Percentage of aa i.e. affected child is 1x100/4 = 25%