O-LevelBiologyGenetics & Variation5090/12 · Oct/Nov 2015 · Q391 Mark

The diagram shows the inheritance of the allele, E, for polydactyly (having extra fingers) which is dominant over the normal allele, e. What are the genotypes of persons M and N?

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AEE

BEe

CEe

Dee

✓ Correct answer

C: Ee

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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 2, question 39.

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