Cell division

• What is the role of mitosis in cell division?


  • Produces identical daughter cells
  • Important for growth, repair, and asexual reproduction
• What are the three stages of the cell cycle?

  1. Mitosis
  2. Interphase
  3. Cytokinesis
• What occurs during interphase of the cell cycle?


  The cell grows and prepares to divide, replicating chromosomes and some organelles
• What happens during cytokinesis?


  The parent and replicated organelles move to opposite sides and the cytoplasm divides
• What are the reasons for the importance of mitosis?


  • Growth: identical cells allow for organism growth
  • Repair: replaces dead tissues
  • Reproduction: single-celled organisms reproduce by mitosis
• What is binary fission?


  • Process by which prokaryotic cells divide
  • Circular DNA replicates and attaches to the cell membrane
  • Cell membrane grows and pinches inward
• What happens to the daughter cells after binary fission?


  Each daughter cell has a single copy of circular DNA and variable plasmids
• How do viruses replicate?


  They inject nucleic acids into a host cell, which replicates the virus particles