DP Biology (first assessment 2025)

Test builder »

Question 19M.1A.SL.TZ1.7

Select a Test
Date May 2019 Marks available [Maximum mark: 1] Reference code 19M.1A.SL.TZ1.7
Level SL Paper 1A Time zone TZ1
Command term Identify Question number 7 Adapted from N/A
7.
[Maximum mark: 1]
19M.1A.SL.TZ1.7

What is common to RNA and DNA?

A. Thymine

B. Nitrogenous bases

C. Histones

D. Deoxyribose

[1]

Markscheme

B

Examiners report

Question 7 was the third easiest in the exam, and several teachers commented that it was too easy, but on the other hand we can be pleased that more than 80% of candidates knew that both RNA and DNA contain nitrogenous bases.

Syllabus sections