Skip to content

Course home

Gene expression is controlled by a number of features (A-level only)

Gene expression is controlled by a number of features (A-level only)

EasyMediumHard
12
Question 2

A malignant lung cancer cell has a mutation that leads to the overexpression of a proto-oncogene, causing the cell to divide once every 21 hours.

Starting with a single cancer cell of this type, calculate how many cancer cells will be present after 5 weeks. Assume that none of these cells die.

Give your answer in standard form.

[2]
Markscheme

Gene expression is controlled by a number of features (A-level only) Questions

  1. A Level
  2. /Biology
  3. /Gene expression is controlled by a number of features (A-level only)

21 exam-style questions on AQA A Level Biology Gene expression is controlled by a number of features (A-level only), covering Most of a cell's DNA is not translated (A-level only), Regulation of transcription and translation (A-level only), and Gene expression and cancer (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

Question bank