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

Question

Dr. Abubacker · Accepted Answer

[Solution from source] Two carriers (Tt × Tt) give TT : Tt : tt in a 1 : 2 : 1 ratio, so the chance of an affected (tt) child is 1/4, i.e. 25%. 50% is the chance of a carrier child. Answer (3).

Q. If both parents are carriers for thalassemia, which is an autosomal recessive disorder, what are the chances of pregnancy resulting in an affected child?

Explanation

Reviewed by Dr. Abubacker

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