Heterozygous sickle cell anaemia gives protection against______________?
Correct answer: B. Malaria
- A. G6PD
- B. Malaria
- C. Thalassemia
- D. Dengue fever
Explanation
Heterozygous HbAS reduces the ability of Plasmodium falciparum to survive in red cells, giving partial protection against severe malaria. It does not protect against G6PD deficiency, thalassemia or dengue.
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