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Cell Cycle and ...

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  • Question 1
    4 / -1

    Select the correct option:Centrioles undergo duplication during _______(i) of ________(ii), and begin to move towards opposite poles of the cell during ________(iii) stage of _________(iv).

  • Question 2
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    ______ is the best stage to count the number and study the morphology of chromosomes.

  • Question 3
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    At which stage of mitosis, the two daughter chromatids separate from each other, migrate towards the opposite poles and are now referred to as chromosomes of the future daughter nuclei?

  • Question 4
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    During anaphasic movements of chromosomes, ______ of each chromosome is/are towards the pole and _____ of the chromosome trail(s) behind.

  • Question 5
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    Which of the following statements is not correct regarding colchicine?

  • Question 6
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    What is true about telophase stage of mitosis?

  • Question 7
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    Spindle usually persists in the form of ______ during _____ method of cytokinesis. 

  • Question 8
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    The best material for studying mitosis in the laboratory is

  • Question 9
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    Mitotic spindle is mainly composed of _________ protein.

  • Question 10
    4 / -1

    Microtubules are absent in

  • Question 11
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    During cell division, the spindle fibres get attached to condensing chromosome at a highly differentiated region. This region is called as

  • Question 12
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    If the tissue has at a given time 1024 cells, how many cycles of mitosis had the original parental single-cell undergone?

  • Question 13
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    Which phase of mitosis is essentially the reverse of prophase in terms of nuclear changes?

  • Question 14
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    The given graph shows the change in DNA content during various phases (A to D) in a typical mitotic cell cycle. Identify the phases and select the correct option.

  • Question 15
    4 / -1

    A cell's division time is 1 minute. In 20 minutes, a culture tube (culture medium) is 1/8th filled with cells. When the tube will be fully filled?

  • Question 16
    4 / -1

    In above sequence of figures showing different stages of cell division, the missing stage (ii) is

  • Question 17
    4 / -1

    The separation of two chromatids of each chromosome at early anaphase is initiated by

  • Question 18
    4 / -1

    Cell would normally proceed to mitosis without interruption

  • Question 19
    4 / -1

    Amitosis usually occurs in

  • Question 20
    4 / -1

    The role of mitosis is not merely to divide a cell into two daughter cells but to ensure genetic continuity from one cell generation to another cell generation. The mechanism ensuring genetic continuity is 

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