O-LevelBiologyGenetics & Variation5090/12 · May/June 2023 · Q341 Mark

In a strand of DNA containing 100 nucleotide pairs, 46 nucleotides contain the base A. How many nucleotides in this DNA strand contain the base T?

A23

B46

C54

D154

✓ Correct answer

B: 46

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Topic: Genetics & Variation, O-Level Biology (syllabus 5090). Multiple choice, 1 mark.
Source: O-Level Biology, May/June 2023 Paper 1 Variant 2, question 34.

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