DP Biology (first assessment 2025)

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Question 19N.1A.SL.TZ0.17

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Date November 2019 Marks available [Maximum mark: 1] Reference code 19N.1A.SL.TZ0.17
Level SL Paper 1A Time zone TZ0
Command term Identify Question number 17 Adapted from N/A
17.
[Maximum mark: 1]
19N.1A.SL.TZ0.17

What is PCR used for?

A. Separate fragments of DNA by size

B. Amplify small amounts of DNA

C. Compare DNA samples

D. Genetically modify organisms’ DNA

[1]

Markscheme

B

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