14+Genetic+Profiles

Genetic profiles can be used in forensic evidence by telling who the victim or assailant was. The profiles use DNA testing because the DNA sequence of every person is unique. Genetic markers can be used to determine one’s genetic profile.
 * __ Describe: __**

The FBI started using RFLP analysis by Southern Blotting to detect similarities and differences of DNA samples. They also use a more sensitive method called short tandem repeats or STRs. These are tandemly repeated units of two to five base sequences in specific regions of the genome. PCR is used to amplify STRs, using primers that are labeled with different colored fluorescent tangs; the length of the region, and the number of repeats. This can then be determined by electrophoresis.
 * __ Analyze: __**

This can be used in crime scenes to compare DNA samples from the suspect, the victim, and a small amount of blood found at the crime scene. It can also be used in paternity testing to find out who the father is or it can be used to identify victims in mass casualties, such as 9/11.
 * __ Apply: __**

This also reminds me of CSI because they’re trying to catch the bad guy and if he leaves some of his DNA behind, the forensic scientists can find out who is and hopefully catch and him put him up for trial.
 * __ Synthesize: __**

I think we should do this because we need to find out who did the crime, or who the father of a child is, or who died in mass casualty. Once again, this isn’t causing anyone any harm at all.
 * __ Argue For Or Against It: __**



Sources: AP Biology textbook, eighth edition