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in Biology by (31.5k points)

Which one of the following conditions though harmful in itself, is also a potential  saviour from a mosquito borne infectious disease?

(a) Pernicious anaemia

(b) Leukaemia

(c) Thalassemia

(d) Sickle-cell anaemia

1 Answer

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Best answer

The correct option is (d) Sickle-cell anaemia.

Explanation:

Sickle-cell anaemia is a genetic disorder in which abnormal haemoglobin rs formed because valine replaces glutamic acid at the sixth position in B-chain of haemoglobin, but the persons having this disease do not suffer from malaria as the parasite fails to thrive in sickle-shaped RBCs.

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