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IB Biology SL A4.1.3 Evidence From Selective Breeding Questions

Selective breeding shows that traits can change rapidly under selection. Examples include pigeons, domesticated animals, Brassica crops, wheat and maize.

Syllabus
First assessment 2025
Course
Biology SL
Level
SL

Exam points

  • Explain how selective breeding shows that traits can change rapidly under selection.
  • Use pigeons, domesticated animals, Brassica crops, wheat or maize as examples of selective breeding.

IB Biology SL A4.1.3 Evidence From Selective Breeding Questions question 1

[Maximum number: 1]

Jersey (Bos taurus) is a breed of cattle. Cows of this breed produce higher milk yields than cows from other cattle breeds.

Figure for Question IB Biology SL A4.1.3 Evidence From Selective Breeding Questions question 1 — IB Biology SL

What has caused this breed to produce higher milk yields than other cattle breeds?

A

Natural selection

B

Selective breeding

C

Adaptive radiation

D

Random mutations

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