A researcher examined dividing cells from a young maize shoot. Each cell was assigned to one of three stages of the cell cycle. The results are shown in the table. The complete cell cycle takes 18 hours.
| Stage of the cell cycle | Number of cells |
|---|---|
| 1 | 132 |
| 2 | 48 |
| 3 | 60 |
For how many hours is a cell expected to be outside stage 2?
3.6 hours
9.9 hours
4.5 hours
14.4 hours
104 exam-style questions on AQA GCSE Biology 1.2 Cell division, covering 1.2.1 Chromosomes, 1.2.2 Mitosis and the cell cycle, and 1.2.3 Stem cells. Each one has a worked solution and a mark scheme showing where the marks go.