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 "

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Biology - 12th Class Biology Chapter 21 Short Questions Preparation

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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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

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 2

Question # 1

Distinguish between karyokinesis and cytokinesis.

  • Ans 1: Karyokinesis: Division of nucleus is called karyokinesis.
    Cytokinesis: Division of cytoplasm is called cytokinesis.
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12th Class Biology Chapter 21 Short Questions Preparation - Set 3

Question # 1

What is Klinfelter's syndrome?

  • Ans 1: The individual have an additional sex chromosome i.e,47.(44+xxy).They 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 about the stage of telophase of mitosis.

  • Ans 1: During telophase of mitosis,nuclear membrane and nucleolus reappear,mitotic apparatus disappears and two nucleoli are formed in one cell.
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21th Chapter

12th Class Biology Chapter 21 Short Questions

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