IB Biology SL D1.2.10 Elongation of Polypeptide Questions

In IB Biology SL D1.2.10, ribosomes move along mRNA as peptide bonds join amino acids. Multiple ribosomes can translate the same mRNA together as a polysome.

Exam points

Explain how ribosome movement along mRNA adds amino acids one by one, so ribosomes at different stages carry polypeptides of different lengths.

[Maximum number: 2]

Six polypeptides are shown in the diagram. Explain the different lengths of these polypeptides.

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IB Biology SL D1.2.10 Elongation of Polypeptide Questions question 1