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 metastasis. Or what is metastasis?

  • Ans 1: The cell composing a malignant tumor or cancer,divide more rapidly,mostly invade surrounding tissues,get into the body's circulatory system,and set up areas of proliferation away from their site of original appearance.This spread of tumor cells and establishment of secondary area of growth is called metastasis.
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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 metastasis. Or what is metastasis?

  • Ans 1: The cell composing a malignant tumor or cancer,divide more rapidly,mostly invade surrounding tissues,get into the body's circulatory system,and set up areas of proliferation away from their site of original appearance.This spread of tumor cells and establishment of secondary area of growth is called metastasis.
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12th Class Biology Chapter 21 Short Questions Preparation - Set 2

Question # 1

Give two disadvantages of cloning..

  • Ans 1: Disadvantages of cloning are.
  • Ans 2: 1) All members of cloning are identical to each other and no genetic variability is produced.
    2) Member of clone does not show resistance to diseases and has less survival ability.
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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

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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