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

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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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

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 Preparation - Set 2

Question # 1

How cytokinesis occur in plants?

  • Ans 1: At cytokinesis,in place of contractile ring a membrane structure,phragmoplast informed from vesicle,which originates from Golgi complex.These vesicles lined up in the center of the dividing cell,where they fuse to form phragmoplast. The membrane of vesicles become the plasma membrane of daughter cells.
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12th Class Biology Chapter 21 Short Questions Preparation - Set 3

Question # 1

Give affect of XYY Klinefelter syndrome.

  • Ans 1: The affected persons are phenotypically male but have frequently enlarged breast,tendency to tallness,Obesity,small testes with no sperms at ejaculation and under development of secondary sex characters.
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12th Class Biology Chapter 21 Short Questions Preparation - Set 4

Question # 1

Write symptoms of Turner's syndrome.

  • Ans 1: Individuals with this condition do not survive pregnancy and aborted.Those who survive have female appearance with short stature webbed neck,without ovaries and complete absence of germ cells.
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21th Chapter

12th Class Biology Chapter 21 Short Questions

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