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Question 19N.1A.HL.TZ0.12

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Date November 2019 Marks available [Maximum mark: 1] Reference code 19N.1A.HL.TZ0.12
Level HL Paper 1A Time zone TZ0
Command term Deduce Question number 12 Adapted from N/A
12.
[Maximum mark: 1]
19N.1A.HL.TZ0.12

The pedigree chart shows the inheritance of hemophilia in some of the descendants of Queen Victoria. Which letter points to a family member certain to be heterozygous?

[Source: © International Baccalaureate Organization 2019]

[1]

Markscheme

A

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