| Date | May 2018 | Marks available | 1 | Reference code | 18M.1.SL.TZ1.5 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 1 |
| Command term | Question number | 5 | Adapted from | N/A |
Question
The concentrations of cyclins rise and fall in cells at certain times.
[Source: https://en.wikipedia.org/wiki/Cyclin#/media/File:Cyclin_Expression.svg]
What times are these?
A. Day and night
B. Seasons of the year
C. Stages of mitosis and interphase
D. Developmental stages in the life cycle
Markscheme
C
Examiners report
[N/A]
