Question

If both the parents are carriers for thalassaemia, the chances of an afflicted child to be born to them is ______.

विकल्प

• 25%

• 50%

• 75%

• 100%

Answer 1

If both the parents are carriers for thalassaemia, the chances of an afflicted child to be born to them is 25%.

Explanation:

If both parents are carriers for thalassaemia, they will have one normal and one mutant allele for the thalassaemia-related gene. Both parents have a 25% chance of passing their altered alleles to their children.