DP Biology (first assessment 2025)

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Question 22M.1A.SL.TZ1.9

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Date May 2022 Marks available [Maximum mark: 1] Reference code 22M.1A.SL.TZ1.9
Level SL Paper 1A Time zone TZ1
Command term Question number 9 Adapted from N/A
9.
[Maximum mark: 1]
22M.1A.SL.TZ1.9

A molecule of DNA is found to contain 200 guanine bases, representing 25 % of the total number of bases. How many phosphate groups does this molecule of DNA contain?

A. 50

B. 200

C. 800

D. 1000

[1]

Markscheme

C

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