Principle of Inheritance and VariationMediumBloom L3
Question
Across between parents with A and AB blood groups results in the offspring with which of the following blood groups?
Options
A.only A
B.only B
C.A, B and AB
D.only O
Solution
Sol.(c) [Key Concept: ABO Blood Groups — A × AB Cross] Parent with blood group A can be I^A I^A or I^A i. Parent with blood group AB = I^A I^B. If A parent is I^A i: I^A i × I^A I^B → offspring: I^A I^A (A), I^A I^B (AB), I^A i (A), I^B i (B) = blood groups A, AB, and B. So offspring can have blood groups A, B, and AB (not O). Answer: A, B and AB = option (c).
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