O-LevelBiologyGenetics & Variation5090/11 · May/June 2015 · Q331 Mark

What describes the chromosome number of these human cells?

Aegg-producing cell in ovary: diploid, sperm: diploid, zygote: haploid, cell in an embryo: haploid

Begg-producing cell in ovary: diploid, sperm: haploid, zygote: diploid, cell in an embryo: diploid

Cegg-producing cell in ovary: diploid, sperm: haploid, zygote: haploid, cell in an embryo: diploid

Degg-producing cell in ovary: haploid, sperm: haploid, zygote: diploid, cell in an embryo: diploid

✓ Correct answer

B: egg-producing cell in ovary: diploid, sperm: haploid, zygote: diploid, cell in an embryo: diploid

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Topic: Genetics & Variation, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2015 Paper 1 Variant 1, question 33.

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