Stem cells

• What is a stem cell

  A stem cell is a undifferentiated cell
• Stem cells in early human embryos

  Can turn into any cell type
• Adult stem cells

  Limited in what cells they can turn into

  Commonly found in bone marrow
• Plant stem cells

  Stem cells are found in meristem tissue

  Plant stem cells can differentiate into any type of plant cell

  Can be used to produce identical clones of plants, useful to preserve rare species