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

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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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 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.
Submit

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

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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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

Differentiate between malignent and benign tumor.

  • Ans 1: Maligent tumor: Malignant tumor or cancer divides more rapidly,mostly invade surrounding tissues get enter in circulatory system for spreading into other body parts.
  • Ans 2: Benign tumor: The small sized local tumor is called benign tumor.Its cells behaves like normal cells and less dangerous.
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Biology
21th Chapter

12th Class Biology Chapter 21 Short Questions

Here you can prepare 12th Class Biology Chapter 21 (Cell Cycle). Click the button for 100% free full practice.

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