| A | B | 
| DNA fingerprint | pattern of bands made up of specific fragments from an individual's DNA | 
| RFLP analysis | extracting DNA from a specimen of blood or other tissue and cutting it into fragments using restriction enzymes | 
| gel electrophoresis | seprates nucleic acids or proteins, primarily according to their size and charge | 
| probe | radioactive segments of DNA that are complementary to the segments being compared | 
| Polymerase chain reaction (PCR) | used to quickly make many copies of selected segments of the avaliable DNA | 
| primer | artificially made single strand sequence of DNA required for the initiation of replication | 
| Human Genome Project | project to determine the mucleotide sequence of the entire human genome and to map the location of every gene on each chromosome | 
| gene therapy | used to treat a genetic disorder by introducing a gene into a cell or by correcting a gene defect in a cells genome | 
| vaccine | solution that contains a harmless version of a virus or a bacterium | 
| pathogens | a disease causing agent that have been treated so they no longer cause diseases | 
| herbicides | weed controlling chemical |