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3.4 Variation and the Human Genome Project

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Question 21

Groups of caterpillars from the same species, with two genotypes, are given one of two diets. Other conditions are controlled.

GenotypeDietInitial mean body mass / mgMean body mass after 10 days / mg
PA5080
PB5682
QA5579
QB5081

Which conclusion about growth is supported by these results?

[1]
A

Diet B produces a greater mean increase in body mass for both genotypes.

B

Changing from diet A to diet B reduces the mean increase by 4 mg for both genotypes.

C

Diet A produces a greater mean increase in body mass for both genotypes.

D

The diet producing the greater mean increase in body mass depends on the genotype.

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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