Sickle-cell anemia has not been eliminated fr | vedclass

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(C) Sickle-cell anemia is caused by a mutation in the $Hb^S$ gene. Individuals who are heterozygous $(Hb^A Hb^S)$ for the sickle-cell trait possess a

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It provides immunity against malaria.

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(C) Sickle-cell anemia is caused by a mutation in the $Hb^S$ gene. Individuals who are heterozygous $(Hb^A Hb^S)$ for the sickle-cell trait possess a survival advantage in regions where malaria is endemic. The presence of some sickled red blood cells inhibits the growth and reproduction of the malaria parasite $(Plasmodium)$. This phenomenon is known as balanced polymorphism or heterozygote advantage,which maintains the $Hb^S$ allele in the population despite the disease being lethal in the homozygous recessive $(Hb^S Hb^S)$ condition.

List-$I$	List-$II$
$(a)$ Gain or loss of nitrogen base	$(i)$ Aneuploidy
$(b)$ Gain or loss of segment of $DNA$	$(ii)$ Frame shift
$(c)$ Gain or loss of whole set of chromosome	$(iii)$ Euploidy
$(d)$ Gain or loss of one chromosome	$(iv)$ Chromosomal aberration

Sickle-cell anemia has not been eliminated from the African population because,........

Similar Questions

Match List-$I$ with List-$II$:
List-$I$ List-$II$
$(a)$ Gain or loss of nitrogen base $(i)$ Aneuploidy
$(b)$ Gain or loss of segment of $DNA$ $(ii)$ Frame shift
$(c)$ Gain or loss of whole set of chromosome $(iii)$ Euploidy
$(d)$ Gain or loss of one chromosome $(iv)$ Chromosomal aberration

In which one of the following combinations $(a-d)$ of the number of chromosomes is the present day hexaploid wheat correctly represented?

Combination Monosomic,Haploid,Nullisomic,Trisomic

$A$ male human is heterozygous for autosomal genes $A$ and $B$ and is also hemizygous for the hemophilic gene $h$. What proportion of his sperms will be $abh$?

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What percentage of genes does a child receive from his father?

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