How DNA Helps to Solve Crimes

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Deoxyribonucleic acid (DNA) has been used to analyze and prove innocence or guilt of suspects of crimes with great accuracy. DNA is part of everyday life. It is the heredity material in humans and almost all other organisms. While being part of an investigation. DNA has helped to solve crimes. There is a couple ways that DNA left behind can be tested to solve a crime. Either if the suspect has been caught and or had his or her DNA tested, or if he or she has left behind any biological evidence. Which then needs to be tested to see if it matches the DNA found in the crime scene to his or hers DNA. The result to this comparison may help establish if the suspect committed the crime.

Although the chemical structure in everyone’s DNA is the same. Only thing different is the order of DNA base pairs in each person. There are so many million base pairs in a person’s DNA which results in everyone having a different sequence. By using these sequences everybody could be identified solely by their base pairs, which does not give the exact “fingerprint” of the actual person. In result to, these...

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