DP Biology (first assessment 2025)

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Question 21M.1A.SL.TZ2.10

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Date May 2021 Marks available [Maximum mark: 1] Reference code 21M.1A.SL.TZ2.10
Level SL Paper 1A Time zone TZ2
Command term Question number 10 Adapted from N/A
10.
[Maximum mark: 1]
21M.1A.SL.TZ2.10

What is a feature of the human genome?

A. Plasmids

B. Messenger RNA

C. Transfer RNA

D. Mitochondrial DNA

[1]

Markscheme

D

Examiners report

The statistics suggest that this question was not too difficult. As commented on some G2 forms, 'components' of the human genome would have been a better word than 'features'. Other G2 forms indicated that mRMA and tRNA should be included but this is incorrect as only DNA in chromosomes and in mitochondria are considered part of the human genome.

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