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O-LevelBiologyGenetics & Variation5090/11 · Oct/Nov 2011 · Q381 Mark

A child has blood group O. Which couple could be the parents of this child?

AA, B
BAB, B
CO, AB
DAB, A

✓ Correct answer

A: A, B

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About this question

Topic
Genetics & Variation, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source
O-Level Biology, Oct/Nov 2011 Paper 1 Variant 1, question 38.

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