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The ABO blood groups are determined by ______ present on RBCs.

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in Biology – Class 12 by (271k points)
The ABO blood groups are determined by ______ present on RBCs.

(a) proteins

(b) DNA

(c) RNA

(d) carbohydrates

This question was posed to me during an online interview.

My query is from Inheritance Principles in portion Principles of Inheritance and Variation of Biology – Class 12

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The correct choice is (d) carbohydrates

To explain: The ABO blood group is determined by the antigens present on the RBCs of a human. These antigens are sugar polymers.

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