The diagram below shows the different phases of the cell cycle.
Which of the following rows correctly identifies the phases of the cell cycle?
| 1 | 2 | 3 | 4 | |
| A. | Interphase: G1 | Interphase: G2 | Interphase: S | Nuclear division |
| B. | Mitosis | Interphase: G1 | Interphase: S | Interphase: G2 |
| C. | Interphase: G1 | Interphase: S | Interphase: G2 | Nuclear division |
| D. | Interphase: S | Interphase: G1 | Interphase: G2 | Mitosis |
Which of the following processes involve mitosis?
growth, repair, semi-conservative replication
repair, growth, asexual reproduction
reduction division, asexual reproduction, growth
repair, reduction division, asexual reproduction
The micrograph below show cells that are in various stages of the cell cycle.
Image courtesy of Doc. RNDr. Josef Reischig. Licensed under Creative Commons Attribution-Share Alike 3.0 Unported license. Reused and distributed under conditions found at: https://creativecommons.org/licenses/by-sa/3.0/deed.en
Which of the following correctly identifies the different stages of mitosis that each of the labelled cells are in?
| P | Q | R | |
| A. | Prophase | Metaphase | Anaphase |
| B. | Metaphase | Telophase | Anaphase |
| C. | Telophase | Metaphase | Anaphase |
| D. | Prophase | Anaphase | Metaphase |
Which of the following provides the best explanation of how cyclins were discovered?
It was discovered when Robert Hooke researched how proteins drive the progress of the different phases of the cell cycle
It was discovered accidentally when a group of German scientists studied the chromosomes of horse threadworms
It was discovered when Matthias Schleiden and Theodor Schwann studied animal and plant cells under a microscope
It was discovered by chance when Tim Hunt researched protein synthesis in sea urchin eggs
The following steps are involved in the formation of malignant tumours.
1. Tumour cells spread in blood and lymph
2. Rapid mitosis occur
3. Oncogenes arise due to exposure to carcinogens
4. The tumour increases in size
5. Tumour cells form secondary tumours throughout the body
Which would represent the correct order of the steps?
2 → 4 → 3 → 1 → 5
3 → 2 → 4 → 1 → 5
4 → 2 → 3 → 1 → 5
3 → 2 → 1 → 4 → 5
