Stem cells

• Stem cells are found in early human embryos they have the potential to turn into any type of cell at all
• adults have stem cells but are only found in the bone marrow . They cannot turn into any cell type at all only certain ones like blood cells
• Stem cells from embryos and bone marrow can produce clones
• embryonic stem cells can be used to replace faulty cells in sick people
• In therapeutic cloning an embryo is produced with the same genes as the patient. Stem cells from the embryo are not rejected by the patient’s body so they may be used for medical treatment.
• some people are against stem cell research
• They feel that human embryos should not be used for experiments since each one is potential human life
• Stem cells from meristems in plants can be used to produce clones of plants quickly and economically.
• Rare species can be cloned to protect from extinction.
• Crop plants with special features such as disease resistance can be cloned to produce large numbers of identical plants for farmers.