AIIMS2018Botany-Genetics

AIIMS 2018 Botany Genetic Disorders MCQ Question

Type: MCQ-conceptual-Medium-Class 12

Which of the following chains of haemoglobin is affected in thalassaemia

A

Only β\beta chain

B

Only α\alpha chain

C

Both α\alpha and β\beta chain

D

γ\gamma chain

Correct Answer

Option C

Detailed Explanation

Thalassaemia is a genetic disorder characterized by the reduced production of one or more of the globin chains that make up hemoglobin (Hb), specifically affecting either the alpha (α) or beta (β) chains. In this condition, the imbalance in globin chain synthesis leads to ineffective erythropoiesis and hemolysis, resulting in anemia. Options A, B, and D are not applicable as they do not provide relevant information or choices related to the disorder's characteristics or its impact on hemoglobin structure. Understanding the specific chain involvement is crucial for diagnosing and managing thalassaemia effectively.

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