Biotechnology is a specific science that lets us find the most beneficial traits of any living life form. Researchers use recombinant DNA technology to look at genetic changes. Recombinant DNA lets laboratory specialist cut DNA from different species and put the molecules from it into bacteria or other types of cells. Researchers also use genetic engineering when doing their homophone experiments. Genetic engineering means to isolate, modify and insert genes back into the same organism or back into a different one.

This technology originated with bacteria. Bacterial cells have a single chromosome that has all the genes they need to have to grow and reproduce. But a lot of species also have something called plasmids. Plasmids are small molecules of DNA that have genes in them.

Restriction enzymes are able to recognize and cut apart a foreign DNA th

traits or disease through a family, but they can follow the way of genetic material by tracking RFLP's through generations if they have DNA from all the family members. To find a particular gene, geneticists look for RFLPs that are always inherited with it. Genes on a chromosome have one chance to be separated each generation during the formation of egg and sperm cells. At that time, pieces of the chromosomes turn into the new configurations that make each of us who we are. The closer two genes are, the likelier that they will enter the egg or sperm together. So if a RFLP always comes with a disease in one kind of family, the gene for this disease must be close to it.

By using biotechnology researchers can also identify someone if an unknown person if they ever died, like they are doing for the victims that died in the tragedy that happened on September 11. In a lab in Salt Lake City called Myriad, they are testing cotton swabs that contain DNA off the cheeks of the victims that died in the World Trade Center disaster. New York City officials estimate that as many as a million DNA samples have to be tested in the lab. The Myriad lab will perform a standard DNA analysis that is used to co

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