A-LevelBiologyNucleic acids and protein synthesis9700/12 · May/June 2020 · Q241 Mark
Part of the nucleotide sequence of an mRNA molecule is shown, with spaces between the codons. CAG UAC AGC AAU CUA UAA The translation of the codons is provided. [Figure 24.1] Which events will cause the termination of polypeptide synthesis during translation? 1 Deletion of C from the leu codon. 2 Deletion of C from the tyr codon. 3 The ribosome reaching the UAA codon.
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A1, 2 and 3
B1 and 2 only
C1 and 3 only
D2 and 3 only
✓ Correct answer
D: 2 and 3 only
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