Question

Which of the following is not X-linked recessive?

• A. Haemophilia-A
• B. Colour blindness
• C. $\beta$-Thalasemia
• D. G-6 PD deficiency

Answer 1

The correct option is C $\beta$-Thalasemia

The beta thalassemias is an autosomal recessive disorder and not an X-linked disease. Gene of Beta chain is located on Chromosome 11. Mutation in this gene due to substitution, insertion and deletion leads to beta thalassemia due to which beta globin chain is not synthesised. Thus, the correct answer is option C.