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3.4 Variation and the Human Genome Project

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Question 4

At the start of a ten-year study, none of the participants had a particular heart condition.

GroupNumber of participantsNumber who developed the heart condition
Allele R present30036
Allele R absent30015

Which conclusion is justified by the data from this study?

[1]
A

Allele R has no association with the heart condition because people in both groups developed it

B

Allele R is the direct cause of the heart condition because more people with the allele developed it

C

Allele R protects against the heart condition because most people with the allele remained unaffected

D

Allele R is associated with the heart condition, but the data do not show that the allele caused the condition

Markscheme

3.4 Variation and the Human Genome Project Questions

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

96 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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