O-LevelBiologyGenetics & Variation5090/11 · Oct/Nov 2010 · Q391 Mark

The body cells of a mammal contain two copies of 24 000 genes, making 48 000 genes in total. Of these 48 000 genes in the body cells of a mammal, how many would have been inherited from its mother?

A6 000

B12 000

C24 000

D48 000

✓ Correct answer

C: 24 000

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Topic: Genetics & Variation, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, Oct/Nov 2010 Paper 1 Variant 1, question 39.

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