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4.28 Mitosis
Exam question
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Describe what happens during mitosis.
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Total for this question: 4 marks
4.28 Mitosis
Exam question
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How many cells are produced by one mitosis?
(1)Total for this question: 1 mark
4.28 Mitosis
Exam question
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Explain why cells made by mitosis are genetically identical.
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Total for this question: 2 marks
4.28 Mitosis
Exam question
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State the number of chromosomes in each cell made when a human skin cell divides by mitosis.
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Total for this question: 1 mark
4.28 Mitosis
Exam question
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Explain why DNA replication must happen before mitosis.
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Total for this question: 2 marks
4.28 Mitosis
Exam question
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Describe how to prepare a root tip slide to see cells in mitosis.
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Total for this question: 3 marks
4.28 Mitosis
Exam question
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Illustrative counts from one field of view.
| Stage | Number of cells |
|---|---|
| not dividing | 172 |
| chromosomes visible | 14 |
| chromosomes lined up | 6 |
| chromosomes separating | 5 |
| two nuclei forming | 3 |
Calculate the percentage of cells that were dividing.
(2)Total for this question: 2 marks
4.28 Mitosis
Exam question
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| Stage | Number of cells |
|---|---|
| not dividing | 172 |
| chromosomes visible | 14 |
| chromosomes lined up | 6 |
| chromosomes separating | 5 |
| two nuclei forming | 3 |
Suggest why most cells were not dividing.
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Total for this question: 2 marks
4.28 Mitosis
Exam question
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Explain why a cell must grow before it divides again.
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Total for this question: 2 marks
4.28 Mitosis
Exam question
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Compare the chromosome number of a parent cell and its daughter cells after mitosis.
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Total for this question: 2 marks
4.28 Mitosis
Exam question
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Explain why uncontrolled mitosis can lead to cancer.
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Total for this question: 2 marks
4.28 Mitosis
Exam question
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Identify the stage of mitosis in which chromosomes line up across the middle.
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Total for this question: 1 mark
