Start learning →

AP Biology Prokaryotic Gene Regulation — practice questions

Explore 1 free Prokaryotic Gene Regulation questions in AP Biology Biology. Open each question or exercise to read its content, reference answers and available explanation.

Practise Prokaryotic Gene Regulation with Quill →

Prokaryotic Gene Regulation questions and exercises with answers

Showing questions 1–1 of 1.

Switch the operons on and offRead the answer and worked solution →

Worked practice questions

Switch the operons on and off

Read exercise and reference answers
Questions
  1. Statement is true
    Yes
    Statement
    The lac operon is transcribed only when glucose is absent and lactose is present.
  2. Statement is true
    Yes
    Statement
    Two tryptophan molecules bind the trp repressor before it can sit on the operator.
  3. Statement is true
    No
    Statement
    The trp operon stays switched on while tryptophan is plentiful in the cell.
  4. Statement is true
    Yes
    Statement
    Levels of cyclic AMP in E. coli rise as the supply of glucose runs low.
  5. Statement is true
    No
    Statement
    Inducers are proteins that always increase the transcription of an operon.
  6. Statement is true
    Yes
    Statement
    All the genes needed to use lactose sit next to each other in one operon.
Instructions
Tap true or false for each statement about how bacteria control their operons.
_Source: OpenStax Biology 1e, section 16.2 Prokaryotic Gene Regulation_

Open this exercise →

How to practise

  1. Choose a Prokaryotic Gene Regulation question and try to work out your answer.
  2. Open the question to check the correct answer and read its worked solution.
  3. Continue in the app for bite-sized lessons, explanations and review with Quill. You can start without creating an account.

More Biology topics

Gene ExpressionEcology and the BiosphereEvolution and the Origin of SpeciesDNA Structure and FunctionCell StructureBiological MacromoleculesCellular RespirationMetabolism