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Cell Cycle And Cell Division

Question
CBSEENBI11002682
Wired Faculty App

Which of the following options gives the correct sequence of events during mitosis?

  • Condensation - nuclear membrane disassembly
    - crossing over - segregation - telophase

  • Condensation - nuclear membrane disassembly
    -arrangement at equator - centromere
    division - segregation - telophase

  • Condensation - crossing over - nuclear
    membrane disassembly - segregation -
    telophase

  • Condensation - arrangement at equator -
    centromere division - segregation -
    telophase

Solution

B.

Condensation - nuclear membrane disassembly
-arrangement at equator - centromere
division - segregation - telophase

The correct sequence of events during mitosis would
be as follows
(i) Condensation of DNA so that chromosomes become visible occurs during early to mid-prophase.
(ii) Nuclear membrane disassembly begins at late prophase or transition to metaphase.
(iii) Arrangement of chromosomes at equator occurs during metaphase, called congression.
(iv) Centromere division or splitting occurs during anaphase forming daughter chromosomes.

Some More Questions From Cell Cycle and Cell Division Chapter

 Namethe five phases of of Prophase I.

 What are two types of cells on the basis of presence or absence of nucleus ?

Name an important event that occurs during meiosis and not during mitosis.

Name a cell that has half the number of chromosomes. Name the process responsible for the reduced number.

Name the sub-stage of meiosis in which crossing over takes place.

At which stage of mitosis, the two chromatids of each chromosome separate and move towards opposite poles.

Name the cell division which is responsible for growth and healing of wounds.

What type of cell division can produce variations ?

Name the active site of meiosis in flowering plants.

 What is synapsis ?

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