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6.3 The development of understanding of genetics and evolution

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Question 9

Scientists kept complete records of the numbers of living individuals of three species of cave fish in all wild habitats and in breeding centres.

Species2019: wild habitats2019: breeding centres2024: wild habitats2024: breeding centres
K440018
L6900
M120040

Which species became extinct between 2019 and 2024?

Explain your answer and state what happened to the alleles of this species.

[3]
Markscheme

6.3 The development of understanding of genetics and evolution Questions

  1. GCSE
  2. /Biology
  3. /6.3 The development of understanding of genetics and evolution

71 exam-style questions on AQA GCSE Biology 6.3 The development of understanding of genetics and evolution, covering 6.3.1 Theory of evolution, 6.3.2 Speciation, 6.3.3 The understanding of genetics, 6.3.4 Evidence for evolution, 6.3.5 Fossils, 6.3.6 Extinction, and 6.3.7 Resistant bacteria. Each one has a worked solution and a mark scheme showing where the marks go.

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