Mitosis and Meiosis

• Stages of the cell cycle

  1. Interphase

  2. Prophase

  3. Metaphase

  4. Anaphase

  5. Telophase

  6. Cytokinesis
• Interphase


  90% of the cell cycle

  
  

  1. Growth - proteins and organelles needed are formed

  
  

  2. Synthesis - DNA is replicated

  
  

  3. Growth - the cell grows and prepares for division
• Prophase


  1. Chromatin condenses into chromosomes to prepare for chromosome division

  
  

  2. Nucleus breaks down

  
  

  3. Centrioles move apart and the mitotic spindle forms
• Metaphase


  As the centrioles move to the opposite sides of the cell, CHROMOSOMES ARE PULLED TO THE CENTRE OF THE CELL
• Anaphase


  CHROMOSOMES ARE PULLED APART with each sister chromatic moving to the opposite sides of the cell
• Telophase


  1. Spindle fibers dissolve

  
  

  2. Nucleus reforms around each set of daughter chromosomes
• Cytokinesis


  DIVISION OF THE CYTOPLASM to form two separate daughter cells
• Meiosis (Steps)


  IPMAT + C + PMAT +C
• Meiosis Defination


  It is a type of cell division that produces GAMETES through sexual reproduction
• Haploid


  having a SINGLE set of unpaired chromosomes
• Diploid


  containing TWO COMPLETE sets of chromosomes, one from each parent.