DP Biology (first assessment 2025)

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Question 21M.1A.SL.TZ2.9

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Date May 2021 Marks available [Maximum mark: 1] Reference code 21M.1A.SL.TZ2.9
Level SL Paper 1A Time zone TZ2
Command term Question number 9 Adapted from N/A
9.
[Maximum mark: 1]
21M.1A.SL.TZ2.9

Which feature is common to both mRNA and DNA?

A. Covalent bonds between adjacent nucleotides

B. Hydrogen bonds between guanine and cytosine

C. Ribose sugar attached to phosphate

D. Antiparallel arrangement of polynucleotide strands

[1]

Markscheme

A

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