O-LevelBiologyGenetics & Variation5090/11 · May/June 2019 · Q371 Mark

Two heterozygous plants are crossed. What is the likely ratio of homozygous genotypes to heterozygous genotypes in the offspring?

A1 : 1

B1 : 2

C1 : 3

D3 : 1

✓ Correct answer

A: 1 : 1

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Topic: Genetics & Variation, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2019 Paper 1 Variant 1, question 37.

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