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3.4 Variation and the Human Genome Project

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Question 30
H

A researcher compares DNA from people with a disease and healthy people. A particular variant occurs in 45% of each group.

Which conclusion is justified by these results?

[1]
A

The variant guarantees protection from developing the disease.

B

These results provide no evidence linking this variant to disease.

C

The disease cannot be influenced by any inherited variants.

D

The variant is the sole genetic cause of the disease.

Markscheme

3.4 Variation and the Human Genome Project Questions

  1. GCSE
  2. /Biology
  3. /3.4 Variation and the Human Genome Project

40 exam-style questions on Edexcel GCSE Biology 3.4 Variation and the Human Genome Project, covering 3.4.1 Causes of variation, 3.4.2 Outcomes of the Human Genome Project, 3.4.3 Genetic variation within a population, and 3.4.4 Effects of genetic mutations on phenotype. Each one has a worked solution and a mark scheme showing where the marks go.

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