what is gel electrophoresis?

Answer 1

Placing molecules (like, say, DNA) on a gel with an electric current running across it. The DNA has a charge, and moves from one end to the other. Thing is, larger sections of the DNA move slower than smaller sections, so you actually get a piece-by-piece map of the DNA and, therefore, know its sequence.

Answer 2

Gel electrophoresis is a group of techniques used to separate molecules based on physical characteristics such as size, shape, or isoelectric point. Gel electrophoresis is usually performed for analytical purposes, but may be used as a preparative technique to partially purify molecules prior to use of other methods such as mass spectrometry, PCR, cloning, DNA sequencing, or immuno-blotting for further characterization.

you can use it to see what kind of DNA you have and determine things like baby-parent relations....etc.....

Answer 3

It is the separation of molecules (usually large, like proteins or DNA) by charge and mass through a gelatin substance (such as agarose) using an electric current.