Telophase in Karyokinesis Outline

• Chromosomes Decondense

  • Chromosomes at poles decondense and lose individuality

  • Individual chromosomes not visible

• Chromatin Material

  • Chromatin collects at opposite poles

  • Chromosomes cluster at spindle poles

• Key Events

  • Chromosomes cluster at opposite spindle poles

  • Identity lost as discrete elements

  • Nuclear envelope forms around chromosome clusters

  • Formation of two daughter nuclei

• Organelle Reformation

  • Nucleolus, golgi complex, and endoplasmic reticulum reform

At the beginning of the final stage of karyokinesis, i.e.,telophase, the chromosomes that have reached theirrespective poles decondense and lose their individuality. Theindividual chromosomes can no longer be seen and each setof chromatin material tends to collect at each of the two poles(Figure 10.2 d). This is the stage which shows the followingkey events:Chromosomes cluster at opposite spindle poles and theiridentity is lost as discrete elements.l Nuclear envelope develops around the chromosomeclusters at each pole forming two daughter nuclei.l Nucleolus, golgi complex and ER reform