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IB Biology SL D1.3.5 Randomness in Mutation Questions

In IB Biology SL D1.3.5, mutations occur randomly with respect to organism need or advantage, while mutation rate varies with DNA sequence, gene expression, repair and mutagen exposure.

Syllabus
First assessment 2025
Course
Biology SL
Level
SL

Exam points

  • Explain that mutations occur randomly with respect to an organism’s need or advantage.

IB Biology SL D1.3.5 Randomness in Mutation Questions 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.

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