Assertion. Sickle-cell haemoglobin has valine in place of glutamic acid at position 6 in the `beta` polypeptide chain. Reason. Sickle-cell anaemia is expressed only in homozygous recessive state.A. If both A and R are true and R is the correct explanation of A.B. If both A and R are true but R is not the correct explanation of A.C. If A is true but R is false.D. If both A and R are false.

Assertion. Sickle-cell haemoglobin has valine in place of glutamic aci

1.	Assertion. Sickle-cell haemoglobin has valine in place of glutamic acid at position 6 in the `beta` polypeptide chain. Reason. Sickle-cell anaemia is expressed only in homozygous recessive state.A. If both A and R are true and R is the correct explanation of A.B. If both A and R are true but R is not the correct explanation of A.C. If A is true but R is false.D. If both A and R are false.
Answer» Correct Answer - B

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