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QB: Cell Biology- Chapter 7

Chapter 7: Cell cycle, cell division and its significance

2 marks:
1.     What is cell cycle?
2.     What are the phases of cell cycle?
3.     What is cell division?
4.     What are the two types of cell division and what is the main difference between them?
5.     Explain the terms in brief (for 2 marks)
·        Haploid
·        Diploid
·        G- phase
·        S- phase
·        M- phase
·        interphase
·        Prophase
·        Metaphase
·        Anaphase
·        Telophase
·        Cytokinesis
·        Karyokinesis
·        Leptotene
·        Zygotene
·        Pachytene
·        Diplotene
·        Diakinesis
·        Crossing over
·        Synapsis
·        Synaptonemal complex
·        Chaisma
4 marks:
1.     List down and explain different stages of cell cycle. (In short: 2-3 sentences for each stage)
2.     Explain the process of mitotic cell division (in short: 2-3 sentences for each stage)
3.     Describe the process of crossing over
4.     Describe prophase I of meiotic cell division.


8 marks:
1.     Describe the mitotic cell division with help of diagrams
2.     Describe the process of meiotic cell division (writing all stages are expected. Diagram not expected for 8 marks)

16 marks:
1.     What is cell cycle? Explain in detail.

HOW TO WRITE THIS ANSWER:
·        Cell cycle
·        Phases of cell cycle
o   Interphase
§  G1
§  S
§  G2
o   M phase
§  Prophase
§  Metaphase
§  Anaphase
§  Telophase
Diagrams of cell cycle and all stages of mitosis are expected.

2.     What is meiotic cell division? Where it takes place? Describe the stages of meiosis.
HOW TO WRITE THIS ANSWER:
§  Explain meiosis and the cell in which it takes place
§  List down all the stages of meiosis and then explain each of them with help of diagram.

3.     Differentiate between mitosis and meiosis.
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