| A | B |
| genetic engineering | procedures for cleaving DNA from an organism into small fragemtns, and inserting the fragments into another organism of the same or different species |
| Recombinant DNA | made by connecting fragments of DNA from different sources |
| transgenic organisms | organisms that containg foreign DNA |
| restriction enzymes | proteins that have the ability to cut both strands of the DNA molecule at certain points |
| vector | a means by which foreign DNA can be transferred into the host cell |
| plasmid | small ring of DNA found in a bacteria cell |
| gene splicing | rejoining cut DNA fragments |
| clones | genetically identical copies |
| human genome | the approximately 35,000 genes on the 46 human chromosomes |
| linkage map | a genetic map that shows the location fo genes on a chromosome |
| cell culture | technique to grow cells in a nutrient medium to obtain large samples of DNA |
| gene therapy | the insertion of normal genes into human cells to correct genetic disorders |