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O-LevelBiologyGenetics & Variation5090/11 · Oct/Nov 2023 · Q341 Mark

In a DNA molecule, bonds between pairs of bases hold the strands together. Which pairs of bases are found in DNA? 1 A-C 2 A-G 3 A-T 4 C-G 5 C-T 6 T-G

A1, 2, 3, 4, 5 and 6
B1 and 6 only
C2 and 5 only
D3 and 4 only

✓ Correct answer

D: 3 and 4 only

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About this question

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

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