KCET2026BiologyPrinciples of Inheritance and Variation
Thalassemia and Sickle cell anaemia are due to a problem in globin molecule synthesis. Select the correct statement.
Options
- ASickle cell anaemia is due to a quantitative problem of globin molecule.
- BBoth are due to qualitative defects in globin chain synthesis.
- CBoth are due to quantitative defects in globin chain synthesis.
- DThalassemia is due to less synthesis of globin molecules.
Correct answer
D. Thalassemia is due to less synthesis of globin molecules.
Step-by-step solution
Thalassemia is an autosomal recessive blood disease. It is a quantitative problem of synthesizing too few globin molecules. Sickle cell anaemia is an autosomal recessive trait. It is a qualitative problem of synthesizing an incorrectly functioning globin molecule. Therefore, Thalassemia is due to less synthesis of globin molecules. Answer: Thalassemia is due to less synthesis of globin molecules.