IB skill practice

Use gene expression and protein synthesis models

Paper 1, Paper 2 5 marks Difficulty 3

Distinguish transcription and translation

A gene expression diagram in a Auckland food-test practical shows DNA being used to make mRNA, then mRNA being used to make a polypeptide. Name the two stages in order. Enter the answer and choose the interpretation that best matches the biological evidence.

Worked practice: biological evidence and answer

Use the labelled biological evidence first, then connect it to the final answer.