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IB Biology HL A4.1.3 Selective breeding Question Bank

Practise IB Biology HL A4.1.3 by evaluating selective breeding as evidence for evolution and tracing heritable phenotype changes in dogs and crops.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Explain how artificial selection of heritable traits produces rapid change from a wild ancestor.
  • Distinguish selective breeding from natural selection when interpreting domesticated phenotypes.

A4.1.3—Evidence from selective breeding question 1

[Maximum number: 3]

Cell biologists play an important role in research into disease, fertility, evolution and many other areas of science.

Outline the evidence for evolution provided by selective breeding.

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