IB Biology SL 1.3.5 Randomness in mutation Question Bank
Practise IB Biology SL 1.3.5 by explaining that mutations arise randomly and that environmental factors can alter mutation frequency.
- Syllabus
- First assessment 2025
- Course
- Biology SL
- Level
- SL
Exam points
- Explain what is meant by mutations occurring randomly with respect to need or direction.
- Distinguish random origin from an increased mutation rate caused by a mutagen.
- Link random mutation to the generation of variation without implying adaptation is directed.
D1.3.5—Randomness in mutation question 1
[Maximum number: 1]
What is a feature of mutations?
A
They occur randomly.
B
They only occur in germ cells.
C
The frequency cannot be increased by external factors.
D
They only occur in certain base sequences of the genome.
A
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