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 and when the phragmoplast originates?

  • Ans 1: Phragmoplast originates from the Golgi vesicles or Golgi apparatus.Vesicles cuts of from the Golgi apparatus and arranged at the equator to from phragmoplast. Phragmoplast originate at the time of cytokinesis in plant 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 and when the phragmoplast originates?

  • Ans 1: Phragmoplast originates from the Golgi vesicles or Golgi apparatus.Vesicles cuts of from the Golgi apparatus and arranged at the equator to from phragmoplast. Phragmoplast originate at the time of cytokinesis in plant cells.
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12th Class Biology Chapter 21 Short Questions Preparation - Set 2

Question # 1

What events occur in anaphase-I in meiosis?

  • Ans 1: During the anaphase of meiosis -1.The spindle fibers contract and each member of homologous chromosomes moves towards each pole.In this way half chromosomes reaches to one pole and other half reaches to another pole.
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12th Class Biology Chapter 21 Short Questions Preparation - Set 3

Question # 1

Give only cause of Down's syndrome and Klinefelter syndrome.

  • Ans 1: These are meiotic errors due to non disjunction and due to unequal distribution of chromosomes.
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12th Class Biology Chapter 21 Short Questions Preparation - Set 4

Question # 1

What are the events of S-Phase?

  • Ans 1: Following G1the S-Phase (synthesis phase) during which the DNA is synthesized and chromosomes number is doubled.
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21th Chapter

12th Class Biology Chapter 21 Short Questions

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