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Question : Assertion : Sickle-cell anaemia is an autosome-linked recessive disorder that can be transmitted if both parents are heterozygous for the gene Reason : In sickle-cell anaemia, haemoglobin molecule undergoes polymerisation under low oxygen tension causing the change in shape in RBC

Answer»

A and R both are correct and R is correct EXPLANATION of A
A and R both are correct and R is not correct explanation of A
A is correct but R is incorrect
A and R both are incorrect

Answer :B


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