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NEET UG BIOLOGY MCQ: PRINCIPLE OF INHERITANCE AND VARIATION

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Understanding +4 | -1

Assertion (A): In a person with AB-blood group, the erythrocytes carry both A and B antigen on their surface.

Reason (R): The alleles

\mathrm{I}^{\mathrm{A}}

and

\mathrm{I}^{\mathrm{B}}

that produce AB blood group are codominant and both are expressed.

View answer and explanation

Correct option: A

Both (A) & (R) are true and the (R) is the correct explanation of the (A)

Option A (Both (A) & (R) are true and the (R) is the correct explanation of the (A)) is correct because both the assertion and the reason are true, and the reason correctly explains why AB blood group individuals express both A and B antigens.

NEET UG BIOLOGY MCQ: PRINCIPLE OF INHERITANCE AND VARIATION

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