Skip to content

Cambridge AS & A Level Biology

16.3Gene control

Gene control in Cambridge AS & A Level Biology: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic21 practice questions1 lesson

Learning objectives

What the syllabus expects you to be able to do.

  1. 16.3.1Distinguish structural from regulatory genes and repressible from inducible enzymes.
  2. 16.3.2Explain the control of protein production in a prokaryote using the lac operon.
  3. 16.3.3State that transcription factors bind DNA and raise or lower transcription in eukaryotes.
  4. 16.3.4Explain how gibberellin activates genes by causing breakdown of DELLA repressor proteins.

Lessons

  • Control of gene expression

    35 min

    Full access

Join to read every lesson, or see what Full access includes.

Sample question

A sample question on this topic. Answer it, check it, then read the worked answer.

Gene control: sample question

1 mark

Which enzyme is coded for by the lacZ gene?

Choose one answer

Turn Gene control into a strength.

Practise with instant marking, see your mastery grow and get a study plan built around your exam date.