Question

why sickle cell anemia people didnot suffer from maleria
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Answer 1

Answer:

There are many genes that influence just this. For example, a genetic variance causing sickle cell anemia actually protects against another disease, malaria. This explains why the gene for sickle cell anemia is found in about 7% of the population in malaria-stricken regions, but is virtually nonexistent elsewhere.

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Answer 2

Answer:

While the genetic mutation in the beta globin gene producing sickle hemoglobin (HbS) causes severe vascular complications that can lead to early death in individuals who are homozygous (SS) for the mutation, in its heterozygous form (AS), it partially protects against severe malaria caused by P.

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