O-LevelBiologyGenetics & Variation5090/11 · May/June 2012 · Q401 Mark

Which statement about dominant and recessive alleles is not correct?

Adominant characteristic is seen in the phenotype of a heterozygote.

Bhomozygous genotype may be either dominant or recessive.

CRecessive phenotypes always have two recessive alleles.

DThe phenotype of a homozygote is always dominant.

✓ Correct answer

D: The phenotype of a homozygote is always dominant.

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Topic: Genetics & Variation, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2012 Paper 1 Variant 1, question 40.

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