What is true for thalassaemia?

Options

A. Nutritional disorder leading to anaemia
B. Autosomal recessive disorder leading to clotting abnormalities
C. Autosomal recessive disorder leading to reduced haemoglobin synthesis
D. Autosomal dominant disorder leading to reduced haemoglobin synthesis

Answer

C

Explanation

The option (c) is also correct i.e., the trait under study could not be color blindness. As per pedigree mother does not seem to be a carrier of sex linked recessive disorder as the symbol for carrrier of sex linked recessive disorder has not been used. if mother is not a carrier of sex linked recessive disorder, then none of the daughters can be a sufferer. but still (a) is a better choice.