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3.4 Variation and the Human Genome Project

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Question 15

Scientists investigated whether an inherited allele and diet are associated with adult body mass in locusts of the same species.

Inherited allele LMean body mass on standard diet / gMean body mass on protein-rich diet / g
Absent1.82.2
Present2.02.4

Which conclusion is supported by all four results?

[1]
A

There is no environmental influence because the difference between diets is the same for both allele groups.

B

Diet is associated with body mass only in locusts without allele L.

C

Allele L is associated with greater body mass on both diets.

D

Allele L is associated with body mass on the standard diet but not on the protein-rich diet.

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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