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A-LevelBiologyNucleic acids and protein synthesis9700/12 · May/June 2024 · Q231 Mark

In eukaryotes, the RNA molecules formed during transcription are modified by the removal of non-coding sequences. This is followed by the joining together of coding sequences to form mRNA. What are the coding sequences also called?

Acodons
Bexons
Cintrons
Dprimary transcripts

✓ Correct answer

B: exons

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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 2024 Paper 1 Variant 2, question 23.

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