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

Write down the events of metaphase of mitosis.

  • Ans 1: The Kinetochore fibers of spindles attach to the kinetochore region (specialized area in centromere) of chromosomes and align them at the equator of the spindle forming equatorial plate or metaphase plate.
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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

Write down the events of metaphase of mitosis.

  • Ans 1: The Kinetochore fibers of spindles attach to the kinetochore region (specialized area in centromere) of chromosomes and align them at the equator of the spindle forming equatorial plate or metaphase plate.
Submit

12th Class Biology Chapter 21 Short Questions Preparation - Set 2

Question # 1

What events occur in anaphase of mitosis?

  • Ans 1: During anaphase of mitosis spindle contract and centromere divides and two sets chromosomes are formed.Each set of chromosomes moves toward opposite poles.So that each pole receive one set of chromosomes.
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12th Class Biology Chapter 21 Short Questions Preparation - Set 3

Question # 1

What are the events of zygotene of prophase -I of meiosis?

  • Ans 1: First essential phenomenon of meiosis i.e, pairing of homologous chromosomes called synapsis starts. Each paired but not fused,complex structure is called bivalent or tetrad.
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12th Class Biology Chapter 21 Short Questions Preparation - Set 4

Question # 1

Describe changes occur in during G1phase.

  • Ans 1: It is period of extensive metabolic activities,in which cell normal grows in size,specific enzymes are synthesized and DNA base units are accumulated for the DNA synthesis
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21th Chapter

12th Class Biology Chapter 21 Short Questions

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