Select the correct match:

Question

Accepted Answer

1. Phenylketonuria is an inborn error of metabolism inherited as an autosomal recessive trait , not dominant.
2. Sickle cell anemia is an autosome linked recessive trait . It is caused by a mutation in the gene coding for the beta-globin chain of haemoglobin. The text mentions that  Thalassemia (affecting the same beta-globin chain) is controlled by a gene on chromosome 11 . Thus, Sickle cell anemia is correctly matched.
3. Thalassemia is an autosome-linked recessive blood disease , not X-linked.
4. Haemophilia is a sex linked (X-linked) recessive disease , not Y-linked.

Step-by-Step Solution

Practice All BIOLOGY Questions