Which of the following conditions,although ha | vedclass

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(D) Sickle cell anemia is a genetic disorder caused by a mutation in the hemoglobin gene. Individuals who are heterozygous for the sickle cell trait $

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Sickle cell anemia

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(D) Sickle cell anemia is a genetic disorder caused by a mutation in the hemoglobin gene. Individuals who are heterozygous for the sickle cell trait $(Hb^A Hb^S)$ possess red blood cells that are less hospitable to the malaria parasite,$Plasmodium$. This provides a selective advantage in regions where malaria is endemic,as these individuals are less likely to develop severe or fatal cases of malaria compared to individuals with normal hemoglobin $(Hb^A Hb^A)$.

Which of the following conditions,although harmful,provides resistance against infectious diseases spread by mosquitoes?

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$A$ - Sickle-cell anaemia is a sex-linked recessive trait.
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