O-LevelBiologyGenetics & Variation5090/11 · Oct/Nov 2015 · Q371 Mark

In horses, red hair is dominant to brown. A breeder crosses a number of heterozygous red-haired horses. Approximately what percentage of the offspring will be red-haired?

A25%

B50%

C75%

D100%

✓ Correct answer

C: 75%

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Topic: Genetics & Variation, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, Oct/Nov 2015 Paper 1 Variant 1, question 37.

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