Assertion (A): The human blood group 'AB' exemplifies co-dominance. Reason (R): The gene for human blood group trait exists in three allelic forms I^A, I^B and i.

(B) Both Assertion (A) and Reason (R) are true, but Reason (R) is not the correct explanation of the Assertion (A).

Assertion: The human blood group 'AB' exemplifies co-dominance. Reason (R): The gene for…

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Biology · 2026 · 1 mark

Principles of Inheritance and Variation Inheritance of One Gene 1 mark Understand assertion reason

CBSE 2026 · Region 4 · Set 1 · Q14

Assertion (A) : The human blood group 'AB' exemplifies co-dominance. Reason $\displaystyle (R)$ : The gene for human blood group trait exists in three allelic forms $\displaystyle \mathrm{I}^{\mathrm{A}}, \mathrm{I}^{\mathrm{B}}$ and i.

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Assertion (A): The human blood group 'AB' exemplifies co-dominance. Reason (R): The gene for human blood group trait exists in three allelic forms…

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