Hernandez 1
DNA Fingerprinting
Nharly Hernandez
Wednesday 4:30 Lab
September 26, 2018
Hernandez 2
Introduction
DNA fingerprinting, also known as your genetic fingerprint, is essentially a technique
used to identify somebody through a small sample of DNA using the different and unique
patterns that it is composed of. To do this, there is a process called gel electrophoresis that
basically divides the sections according to how many STR’s they have. Each DNA sample is
placed in agarose gel with the top of it having negative charge and the bottom having a positive
charge. The DNA is placed at the top where the negative charge is. Then, the voltage inside the
gel is turned up and that causes the negatively charged DNA to move towards the positive,
opposite side of the gel separating the conjoined DNA. The bigger portions will move faster than
the smaller ones throughout the gel.
This experiment is important for many reasons but forensics being number 1. When the
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