Cell division

Chromosomes, the cell cycle, mitosis and stem cells.

20 exam questions · 48 marks

1.10 Chromosomes, mitosis and the cell cycle Chromosomes, genes and DNA; the three stages of the cell cycle; how mitosis makes two genetically identical diploid cells, why it matters for growth, repair and asexual reproduction, and how to count cells after n divisions. AQA Edexcel OCR 7 questions 1.11 The stages of mitosis The stages of mitosis in order: interphase, prophase, metaphase, anaphase, telophase and cytokinesis, what happens to the chromosomes in each, and how to recognise them. Edexcel 6 questions 1.12 Stem cells Embryonic stem cells, adult stem cells and plant meristems; how stem cells could treat disease, therapeutic cloning, the risks and ethical issues, and how meristems are used to clone plants. AQA Edexcel OCR 7 questions