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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 $(Hb^A Hb^A)$.

Column $I$	Column $II$
$(1)$ Albinism	$(q)$ Recessive gene represented by $cc$
$(2)$ Phenylketonuria	$(s)$ Recessive gene represented by $pp$
$(3)$ Sickle cell anaemia	$(p)$ Recessive gene represented by $Hb^sHb^s$
$(4)$ Alkaptonuria	$(r)$ Recessive gene represented by $aa$

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

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Color blindness is caused by:

Match the columns:

Column $I$ Column $II$

$(1)$ Albinism $(q)$ Recessive gene represented by $cc$

$(2)$ Phenylketonuria $(s)$ Recessive gene represented by $pp$

$(3)$ Sickle cell anaemia $(p)$ Recessive gene represented by $Hb^sHb^s$

$(4)$ Alkaptonuria $(r)$ Recessive gene represented by $aa$

Which of the following genotypes causes sickle cell anemia?

The gene for color blindness is located on the .....

Which of the following is not a correct statement regarding Phenylketonuria?

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