1. Advances in Genetics
Chapter 5, Section 3

2. Genetic Engineering What is a gene again?
Section of the DNA located in a chromosome that directs the activities of a cell.

3. Genetic Engineering What is genetic engineering?
Biological or chemical ways to change the arrangement of DNA in a gene.

4. Genetic Engineering What is genetic engineering used for?
Produce medicines
Change the functions of cells
Improve crops

5. Genetic Engineering Recombinant DNA
Inserts a section of DNA from an organism into a bacterium.
Examples:
Production of insulin and growth hormone.

6. Genetic Engineering Gene Therapy
Normal alleles are inserted into a virus.
Virus infects a target cell.
Normal allele replaces the defective allele in the target cell.

7. Genetic Engineering Selective Breeding
Selecting plants or animals to breed together based on desired traits.
Has been practiced for thousands of years.

8. Genetic Engineering Genetically Engineered Plants
Desired genes from one plant are inserted into a different plant.