Sickle cell anaemia is due to:

1. Change of Amino Acid in α-chain of Haemoglobin.
2. Change of Amino Acid in β-chain of Haemoglobin.
3. Change of Amino acid in both α and β chains of Haemoglobin.
4. Change of Amino acid either α or β chain of Haemoglobin.

Subtopic:  Mendelian Disorders: Sickle Cell Anemia |
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Which one of the following conditions, though harmful in itself, is also a potential saviour from a mosquito-borne infectious disease?

1. Thalassaemia 2. Sickle cell anaemia
3. Pernicious anaemia 4. Leukemia
Subtopic:  Mendelian Disorders: Sickle Cell Anemia |
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