- Figure 10.7 Because even though the original cell came from a Scottish Blackface sheep and the surrogate mother was a Scottish Blackface, the DNA came from a Finn-Dorset.
- The polymerase chain reaction is used to quickly produce many copies of a specific segment of DNA when only one or a very few copies are originally present. The benefit of PCR is that there are many instances in which we would like to know something about a sample of DNA when only very small amounts are available. PCR allows us to increase the number of DNA molecules so that other tests, such as sequencing, can be performed with it.
- The human insulin comes from the gene that produces insulin in humans, which has been spliced into a bacterial genome using recombinant DNA technology. The bacterium produces the insulin, which is then purified for human use. Before there was genetically engineered human insulin, diabetics were given insulin extracted from pig pancreases, which was similar to, but not exactly like, human insulin. Because it was not exactly like human insulin, the pig insulin caused complications in some diabetic patients.
- Genome mapping helps researchers to study disease-causing genes in humans. It also helps to identify traits of organisms that can be used in applications such as cleaning up pollution.
- The benefit of such a test is that the individual can make preparations for having the disease including taking treatments that slow the disease. The disadvantage of the test is that it might be used by insurance companies to deny coverage to the person.
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- Front Matter
- Body Matter
- Back Matter