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A-LevelBiologyNucleic acids and protein synthesisFeb/Mar 2017Paper 1 Q271 Mark

The diagram shows the stages in the production of part of a polypeptide. Which feature of the triplet code is illustrated by the information given? [Figure 27.1]

AAn amino acid can be coded for by more than one triplet.
BThe triplet code is non-overlapping and is only read in one direction.
CThe triplet code is universal for the DNA of all organisms.
DThere are some triplets that code for 'start' and 'stop'.

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The correct answer is A. This question tests the candidate's understanding of nucleic acids and protein synthesis within the Biologysyllabus. The examiner's mark scheme requires...

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About This A-Level Biology Question

This multiple-choice question appeared in the Cambridge A-Level Biology (9700) Feb/Mar 2017 examination, Paper 1 Variant 2. It tests the topic of Nucleic acids and protein synthesis and is worth 1 mark.

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