DP Biology (first assessment 2025)

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Question 23M.1A.SL.TZ1.11

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Date May 2023 Marks available [Maximum mark: 1] Reference code 23M.1A.SL.TZ1.11
Level SL Paper 1A Time zone TZ1
Command term Question number 11 Adapted from N/A
11.
[Maximum mark: 1]
23M.1A.SL.TZ1.11

How do DNA and messenger RNA (mRNA) molecules differ in eukaryotes?


A.  mRNA is twice the size of DNA and is formed from four different bases.

B.  DNA contains ribose while mRNA contains deoxyribose.

C.  mRNA has the same bases as DNA but contains ribose.

D.  DNA has two strands while mRNA has only one.

[1]

Markscheme

D

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