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Question
Draw labelled diagrams and write an explanation.
Distinguish between mitosis and meiosis.
Solution
| Mitosis | Meiosis | |
| 1. | It occurs in somatic cells and stem cells. | It occurs in germ cells. |
| 2. | In this nucleus divides only once. | In this nucleus divides twice (Meiosis I and Meiosis II) |
| 3. | In these two daughter cells are formed. | In these four daughter cells are formed. |
| 4. | Daughter cells formed by mitotic division are diploid (2n). | Daughter cells formed by meiotic division are haploid (n). |
| 5. | In mitosis, crossing over does not take place. | In meiosis, crossing over takes place. |
| 6. | Mitosis plays an important role in growth, repair, healing and development. | Meiosis is important for the formation of haploid gametes and spores. |
- Mitosis:
Prophase:
Metaphase:
Anaphase:
Telophase:
- Meiosis:
Prophase I:
Metaphase-I:
Anaphase-I:
Cytokinesis-I:
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