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The separation of two chromatids of each chromosome at early anaphase is initiated by ____. State the reason responsible for separation of the chromatids.

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Important Questions on Cell Cycle and Cell Division

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Which of the following is key event of anaphase of mitotic division?
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Which of the following shows the correct sequence of the given mitotic stages?
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Match column I with column II and select the correct option from the given codes.
  Column I   Column II
(a) Disintegration of nuclear membrane (i) Anaphase
(b) Appearance of nucleolus (ii) Prophase
(c) Division of centromere (iii) Telophase
(d) Replication of DNA (iv) S -Phase
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Which phase of mitosis is essentially the reverse of prophase in terms of nuclear changes?
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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.
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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?
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Cytokinesis in an animal cell takes place by ________ method in ________ direction; while in a plant cell it occurs by _________ method in _________ direction.