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A-LevelBiologyNucleic acids and protein synthesis9700/12 · Oct/Nov 2017 · Q251 Mark

The diagram shows the nucleotide sequence of a small section of a gene which is transcribed. GCGCGCGGCGCG The table shows the amino acids coded for by 10 mRNA codons. [Figure 25.1 - table of mRNA codons and amino acids] What is the order of the four amino acids in the polypeptide translated from this small section of a gene?

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AAla-Ala-Cys-Ala
BAla-Arg-Gly-Ala
CArg-Ala-Pro-Arg
DArg-Arg-Thr-Arg

✓ Correct answer

C: Arg-Ala-Pro-Arg

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Topic
Nucleic acids and protein synthesis, A-Level Biology (syllabus 9700). Multiple choice, 1 mark.
Source
A-Level Biology, Oct/Nov 2017 Paper 1 Variant 2, question 25.

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