Principles of Inheritance and Variation Question 139

139. Thalassemia and sickle cell anemia are caused due to a problem in globin molecule synthesis. Select the correct statement :

[2017]

(a) Both are due to a quantitative defect in globin chain synthesis

(b) Thalassemia is due to less synthesis of globin molecules

(c) Sickel cell anemia is due to a quantitative problem of globin molecules

(d) Both are due to a qualitative defect in globin chain synthesis

Show Answer

Answer : b

Hints & Solution

(b) Thalassemia is a quantitative problem of synthesising very few globin molecules while sickle cell anaemia is a qualitative problem of synthesising an incorrectly functioning globin.