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Read the following statements.
Statement I : With regard to sickle cell anaemia, carriers are more affected than the homozygous recessive individuals.
Statement II : Sickle cell anemia is due to point mutation in the DNA coding for $β$ - chain of hemoglobin.
In the light of given statements, choose the correct answer from the options given below.

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Statement I is incorrect but statement II is correct.

Both statement I and statement II are correct.

Statement I is correct but statement II is incorrect.

Both statement I and statement II are incorrect.

answer is D.

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Detailed Solution

Statement I is false. Homozygous recessive individuals for sickle cell anemia are more affected than carriers with sickle cell anaemia.

Statement II is true. It is due to point mutation in the DNA coding for $β$ - chain of hemoglobin.

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