1. The New Science of Life Chapter 24

2. The New Science of Life  Genetic engineering – procedure by which foreign genes inserted into an organism or existing genes altered to modify the function of living things –Gene Therapy to Improve Health Replace defective gene with healthy gene Insert copies of missing genes –Genetically Modified Foods Adding foreign genes to create disease and pest resistant crops and improved yield Modify existing genes to enhance properties (color, firmness, etc.)

3. The New Science of Life  Stem Cell Research –Embryonic stem cells are undifferentiated (not specialized yet) –Growth factors can stimulate specific cell development –Possibilities for growing new cells or tissue replacement / organ replacement in future

4. The New Science of Life  Cloning – production of genetically identical individuals –Engineer a new individual from the genetic material of a donor Remove DNA from nucleus of unfertilized egg Fuse egg with cell of an adult Embryo now divides and develops into a copy of the donor organism –Cloning of mammals is very controversial

5. The New Science of Life  DNA fingerprinting –Analysis of human DNA –Used to match human tissue to a specific individual –Increasingly important in judicial system in the US