Fsc part 2 online preparation for biology chapter 21 (Cell Cycle)

Online Short Questions For Chapter 7 "12th Class Biology Chapter 21 Short Questions Preparation "

Try The Short Questions For 12th Class Biology Chapter 21 Short Questions Preparation

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Biology - 12th Class Biology Chapter 21 Short Questions Preparation

Question # 1

How cytokinesis differ in plant and animal cell?

  • Ans 1: Cytokinesis in plants: In plants cytokinesis occur by phragmoplast formation.Golgi vesicles arrange in the center and fuse with each other forming cell wall between two daughter nuclei which in turn divides into two daughter cells.
  • Ans 2: Cytokinesis in animals: In animals the cytokinesis occurs by inward pinching of cell membrane and parent cell divides into two daughter cells.
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Prepare Complete Set Wise Questions For Chapter 7 "12th Class Biology Chapter 21 Short Questions Preparation "

12th Class Biology Chapter 21 Short Questions Preparation - Set 1

Question # 1

How cytokinesis differ in plant and animal cell?

  • Ans 1: Cytokinesis in plants: In plants cytokinesis occur by phragmoplast formation.Golgi vesicles arrange in the center and fuse with each other forming cell wall between two daughter nuclei which in turn divides into two daughter cells.
  • Ans 2: Cytokinesis in animals: In animals the cytokinesis occurs by inward pinching of cell membrane and parent cell divides into two daughter cells.
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12th Class Biology Chapter 21 Short Questions Preparation - Set 2

Question # 1

Give four important functions of mitosis.

  • Ans 1: Four functions of mitosis are
  • Ans 2: a) Asexual reproduction is due to mitosis
    b) Healing of wounds and regeneration is also due to mitosis
    c) It ensure equal or same number chromosomes in daughter cell
    d) It transfer characters from parents to offspring without any change
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12th Class Biology Chapter 21 Short Questions Preparation - Set 3

Question # 1

Cancer is uncontrolled cell division. Explain.

  • Ans 1: It is called so because genes controlling the cell division lose their control over cell division and cell divides without any control,so it is called uncontrolled cell division.
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12th Class Biology Chapter 21 Short Questions Preparation - Set 4

Question # 1

Give length of cell cycle during mitosis in human cell.

  • Ans 1: In human average cell cycle is about is 24 hours Mitosis takes 30 minutes, G1phase takes 9 hours, S-phase takes 10 hours, and G2 phase takes 4.5 hours.
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12th Class Biology Chapter 21 Short Questions

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