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  9. Q1

TNPSC Group-I 2019 · Question 1 of 9

What happens in human Thalassemias? 1. Reduced alpha-globin synthesis 2. Reduced beta-globin synthesis 3. Enhanced alpha and beta globin synthesis

Biology

  1. A1 alone correct
  2. B2 alone correct
  3. C1 and 2 are correctCorrect
  4. D3 alone correct

Answer: C. 1 and 2 are correct

Explanation

Thalassemia is characterized by reduced synthesis of globin chains: alpha-thalassemia (reduced alpha-globin) and beta-thalassemia (reduced beta-globin). Synthesis is reduced, not enhanced.

Source: Appolo Study Centre compilation of TNPSC Group-I Preliminary Examination 2019 (03.03.2019) tentative answer key

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