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NEET UG BIOLOGY MCQ: EVOLUTION
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Assertion : A sickel-cells anaemia is an example
of natural selection in human population.
Reason : It saves Africans from fatal disease of
malaria in heterozygous condition.
of natural selection in human population.
Reason : It saves Africans from fatal disease of
malaria in heterozygous condition.
View answer and explanation
Correct option: A
If both Assertion and Reason are true and
Reason is the correct explanation of Assertion
Reason is the correct explanation of Assertion
Option A is correct because sickle-cell anemia provides resistance to malaria in heterozygotes, demonstrating natural selection.
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Reason: All life forms were in water environment only.
