DP Biology (first assessment 2025)

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Question 20N.1A.SL.TZ0.15

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Date November 2020 Marks available [Maximum mark: 1] Reference code 20N.1A.SL.TZ0.15
Level SL Paper 1A Time zone TZ0
Command term Question number 15 Adapted from N/A
15.
[Maximum mark: 1]
20N.1A.SL.TZ0.15

What are all the possible phenotypes of children born to a mother with blood group AB and a father with blood group A?

A. AB only

B. A and B

C. AB, A and B

D. AB, A and O

[1]

Markscheme

C

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