A segment of the nucleotide sequence in an mRNA molecule is shown below, with the codons separated by spaces: CAG UAC AGC AAU CUA UAA The translation of these codons is given. Which events would lead to the ending of polypeptide synthesis during translation?
- A1, 2 and 3
- B1 and 2 only
- C1 and 3 only
- D2 and 3 only