What is gel electrophoresis used for?

Answer

Gel electrophoresis is used to test for genes related to specific illnesses, to identify DNA associated with crime scenes, to discover paternity and to track evolutionary relationships. This technique is important in medical, biological and criminal science.

To perform gel electrophoresis, a scientist places a solution of DNA molecules in a gel matrix of agarose. DNA has an electric charge, making it possible to pull the genetic material through the gel using an electric field. The small molecules move faster than the large ones, which creates the characteristic banded pattern that scientists compare with other patterns to determine similarity or difference. Viewers of "CSI," "Law & Order" and other detective shows are familiar with these charts, for they are often depicted as important pieces of evidence in such crime dramas.

Q&A Related to "What is gel electrophoresis used for?"
used to separate macromolecules, either nucleic acids or proteins, on the basis of size, electric charge, and other physical properties. Separating strands of DNA
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In the world of forensics, gel electrophoresis is used to obtain a DNA fingerprint of a criminal. This means that scientists can accurately tell whether two pieces of DNA, one found
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In contrast to agarose, polyacrylamide gels are used extensively fo...
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To detet a particular sequence in a sample of DNA. To observe a pattern of DNA bands. To decifer the size/s of a particular peice/s of DNA.
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Generally, restriction enzymes are used before gel electrophoresis. They are used to cut the DNA into very specific pieces. They are also helpful in comparing ...
A gel electrophoresis chamber is an enclosed space in which molecules such as proteins, DNA or RNA fragments can be separated according to size and electrical ...
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