O-LevelBiologyGenetics & Variation5090/12 · May/June 2016 · Q391 Mark
The diagram shows the pattern of inheritance of dark hair and red hair in two families. [Figure with pedigree charts for family 1 and family 2, and a key for dark-haired male/female, red-haired male/female] If individuals P and Q have children together, which prediction can be made about the hair colour of these children?
This question uses a diagram from the original paper, which isn't shown here. Open the full paper from the past papers archive to see it.
AAll the children will have dark hair.
BAll the children will have red hair.
CHalf the children will have dark hair.
DThree-quarters of the children will have dark hair.
✓ Correct answer
B: All the children will have red hair.
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