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

Define cell cycle.

  • Ans 1: The cell undergoes a sequence of changes,which involves period of growth,replication of DNA,followed by cell division.This sequence of changes is called cell cycle.
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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

Define cell cycle.

  • Ans 1: The cell undergoes a sequence of changes,which involves period of growth,replication of DNA,followed by cell division.This sequence of changes is called cell cycle.
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12th Class Biology Chapter 21 Short Questions Preparation - Set 2

Question # 1

Give the chances of occurrence of Down's syndrome in teenage mothers and a forty years old mother's offspring.

  • Ans 1: The chances of teenage mother having down's syndrome child is one in many thousands of forty years old mother,one in hundred chance and by forty five the risk is three times greater.
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12th Class Biology Chapter 21 Short Questions Preparation - Set 3

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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12th Class Biology Chapter 21 Short Questions Preparation - Set 4

Question # 1

What changes in cell take place during diplotene?

  • Ans 1: The paired chromosomes repel each other and begins to separate.Separation however,is not complete,because homologous chromosomes remain united by their point of interchange.Each bivalent has at least one such point,the chromatids other wise separated.
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Biology
21th Chapter

12th Class Biology Chapter 21 Short Questions

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