A researcher separated rabbit embryonic stem cells into two groups. Each stem cell had 44 chromosomes before the groups were separated.
The two groups were kept under different conditions for 7 days. The table shows the results.
| Group | Mean number of chromosomes per cell | Mass of protein P in 1 million cells in ng | Mass of protein Q in 1 million cells in ng |
|---|---|---|---|
| A | 44 | 68 | 7 |
| B | 44 | 9 | 74 |
Explain what happened to the stem cells after they were placed under the different conditions. Use all the information in the table.
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.