1. Cloning

3. 3 Possible Methods 1. Use totipotent cells (unspecialized) – Can become any type of human cell – Can be used to generate an entire organism Example: embryonic stem cells 2. Use Pleuripotent cells (partially specialized) – Can become same types of cell – These cells (nuclear material) must be “modified” to allow development Example: Fetal stem cells (4-6 week old fetus) Placental/cord blood stem cells Adult stem cells (bone marrow) 3. Use multipotent cells (specialized cells) Example: skin cells, udder cells

4. *Totipotent  Pleuripotent  Multipotent Unspecialized Specialized  Nucleus of unspecialized cell is put in unfertilized egg  Mitosis occurs (must be stimulated by drugs or electric current) Unfertilized Egg (Enucleated) Stem Cell

5. Uses for Cloning Grow organs to transplant Treat Genetic Disorders Agriculture – genetically engineered crops Bring back endangered species

8. Clone Mimi the Mouse Enucleation