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CAIE A-Level Biology A2 17.2.6 Selective Breeding Principles Questions

Practise designing artificial-selection programmes, distinguishing them from natural selection and managing slow generations, inbreeding depression and loss of variation.

Syllabus
2028–2030
Course
Biology 9700
Level
A2

Exam points

  • Sequence artificial selection by choosing parents with desired phenotypes, crossing them, screening offspring and repeating selection over generations.
  • Explain selective-breeding trade-offs, including slow generations, reduced variation and inbreeding depression, and use outcrossing, hybridisation or progeny testing to manage them.
  • Distinguish artificial selection from natural selection by identifying the human selector, controlled mating and chosen phenotype.

CAIE A-Level Biology A2 17.2.6 Selective Breeding Principles Questions question 1

[Maximum number: 1]

Humans use selective breeding to improve the features of crop plants and domestic animals.

State another term for selective breeding.

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