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Date May 2022 Marks available 1 Reference code 22M.1.SL.TZ2.15
Level Standard level Paper Paper 1 Time zone Time zone 2
Command term Question number 15 Adapted from N/A

Question

The pedigree chart shows the inheritance of hemochromatosis, a genetic disease which causes an excessive accumulation of iron in the body.

 

What can be deduced about this genetic disease from the pedigree chart?

A. It is sex-linked.

B. It is autosomal dominant.

C. It is autosomal co-dominant.

D. It is autosomal recessive.

Markscheme

D

Examiners report

[N/A]

Syllabus sections

Core » Topic 3: Genetics » 3.4 Inheritance
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