11th Class Biology Cell Cycle and Cell Division

  • question_answer 54)
    Comment on the statement- Telophase is reverse of prophase.

    Answer:

                    The following contrasting differences reveals that telophase is reverse of prophase, in cell division
    Prophase Telophase
    I'st stage of (karyokinesis) in cell division, Viscosity of cytoplasm increases. Last stage of karyokinesis in cell diveision. Viscodity of cytoplasm deereses.
    The indistinct and interind DNA condense to form elongated chromosomes. Chromosome groups reorganise themselves into nuclei.
    The chromatin disappears and chromosome fibres get shortened and thickened. Chromosomes elongate and overlap each other to form chromatin.
    Spindle fibres appears (awards the poles from the centriole connected in animals with astral rays and in plants without asters  Nudeolus degenerate completely. Spindle fibres disappear around the poles. Astral rays also disappear in plants.
    Cell organelles such as ER, Golgi complex disorganise, and difference between cytoplasm and nucleoplasm disappears.             Nuclear envelope appears and two  daughter nuclei are formed at the poles. Cell organelles, i.e., ER and Golgi complex are reformed in the cell. Nucleoplasm also appears in the chromatin area. Making it distinct from rest of cytoplasmic area.


You need to login to perform this action.
You will be redirected in 3 sec spinner