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gel electrophoresis

noun, Biochemistry
1.
a technique for separating protein molecules of varying sizes in a mixture by moving them through a block of gel, as of agarose or polyacrylamide, by means of an electric field, with smaller molecules moving faster and therefore farther than larger ones.
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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gel electrophoreses in Culture
gel electrophoresis [(i-lek-toh-fuh-ree-sis)]

A technique used in DNA fingerprinting and other processes in which large molecules are to be identified. Fragments of DNA are placed in a semiporous gel, and an electrical field is turned on. The fragments move in response to the field, with smaller fragments generally moving faster. After a time, the fragments have separated enough to form a series of separated lines like a bar code that characterizes the DNA.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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