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A-LevelBiologyNucleic acids and protein synthesis9700/12 · May/June 2021 · Q201 Mark

A short piece of DNA, 18 base pairs long, was analysed to find the number of nucleotide bases in each of the polynucleotide strands. Some of the results are shown in the table. [Figure 20.1] How many nucleotides containing thymine were present in strand 2?

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A2
B4
C5
D7

✓ Correct answer

A: 2

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Topic
Nucleic acids and protein synthesis, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source
A-Level Biology, May/June 2021 Paper 1 Variant 2, question 20.

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