mitosis

• Chromosomes


  Contain genetic information
• Chromosomes

  • Most cells have two copies
  • Contain genes that code for different characteristics
  • Humans have 23 pairs of chromosomes
• Cell Cycle


  1. Produces new cells for growth, development and repair

  2. Consists of stages

  3. Mitosis is the stage when the cell divides
• Mitosis


  Produces two new cells identical to the original cell, with the same number of chromosomes
• Growth & DNA Replication

  1. DNA is spread out in the cell when not dividing

  2. Cell duplicates its DNA before dividing

  3. Chromosomes are duplicated and form sister chromatids
• Mitosis

  1. Chromosomes line up at the centre of the cell

  2. Chromosomes are pulled apart to opposite ends of the cell

  3. Membranes form around the sets of chromosomes

  4. Cytoplasm and cell membrane divide to form two new daughter cells
• Mitosis produces identical daughter cells