11th Class Biology Cell Cycle and Cell Division

  • question_answer 10)
    Distinguish anaphase of mitosis from anaphase-I of meiosis. 

    Answer:

       
      Anaphase of Mitosis Anaphase-I of Meiosis
      1.         2.       3.           Each chromosome arranged at the metaphase  plate is split simultaneously and the two daughter chromatids, begin to migrate towards the two opposite poles.   The centromere of each chromosome is towards the pole with arms of chromosome trailing behind, opposite pole.   This stage has following key events (a) Centromeres split and chromatids separate. (b) Chromatids move to opposite poles,   The spindle fibres contract and pull the entromeres of homologous chromosomes towards the opposite poles.     The centromere is not divided, so half of the chromosomes of parent nucleus go to one pole and the remaining half in the   In this stage (a) Homologous chromosomes separate. (b) Sister chromatids remain associated at their centromere,
     


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