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5.3 Immune system and medicines

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Question 18

In a medicine trial, 12 of 80 patients receiving a lower dose experienced side effects. At a higher dose, 36 of 120 patients experienced side effects. A report compares the side-effect rates in percentage points. What increase should it report for the higher dose?

[1]
A

151515 percentage points

B

121212 percentage points

C

202020 percentage points

D

454545 percentage points

Markscheme

5.3 Immune system and medicines Questions

  1. GCSE
  2. /Biology
  3. /5.3 Immune system and medicines

87 exam-style questions on Edexcel GCSE Biology 5.3 Immune system and medicines, covering 5.3.1 The specific immune system, 5.3.2 Response to immunisation, 5.3.3 Advantages and disadvantages of immunisation, 5.3.4 Antibiotics and bacterial infections, 5.3.5 Aseptic techniques in culturing, 5.3.6 Cross-sectional areas of cultures, 5.3.7 Stages of developing new medicines, and 5.3.8 Production of monoclonal antibodies. Each one has a worked solution and a mark scheme showing where the marks go.

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