Question

By which of the following defects, thalassemia is caused?

(a) Defects in RBCs

(b) Defects in WBCs

(c) Defects in platelets

(d) Defects in lymphocytes

This question was posed to me during an online exam.

My doubt stems from Inheritance and Variation Principles topic in section Principles of Inheritance and Variation of Biology – Class 12

Answer 1

Correct option is (a) Defects in RBCs

For explanation: The defect in the synthesis of globin polypeptide in RBC causes a group of disorders known as thalassemia. Absence or reduced synthesis of one of the globin chains leads to the excess of other chains which accumulate in our body to causes different diseases.