Cloning

• Methods of cloning plants

  • Tissue Culture
  • Cuttings
• Tissue Culture

  1. Put plant cells in growth medium with hormones

  2. Grow into new plants

  3. Used to preserve rare plants and produce stock quickly
• Tissue Culture

  • Made quickly
  • Grown in little space
  • Grown all year
• Cuttings

  1. Take cuttings from parent plants

  2. Plant them to produce clones

  3. Produced quickly and cheaply
• Animal Cloning using Embryo Transplants

  1. Take sperm from prize bull

  2. Take egg from prize cow

  3. Artificially fertilise egg cell

  4. Split embryo to form clones

  5. Implant cloned embryos into other cows
• Adult Cell Cloning

  1. Remove nucleus from unfertilised egg cell

  2. Insert nucleus from adult body cell

  3. Stimulate egg cell with electric shock

  4. Implant embryo into womb of adult female
• Issues surrounding cloning

  • Reduced gene pool
  • Greater understanding of embryo development
  • Preservation of endangered species
  • Cloned animals may not be as healthy
  • Concerns about human cloning