Life: The Science of Biology 11th Edition

Published by W. H. Freeman
ISBN 10: 1-31901-016-4
ISBN 13: 978-1-31901-016-4

Chapter 15 - Gene Mutation and Molecular Medicine - 15.3 - Mutations Can Be Detected and Analyzed - 15.3 Recap - Learning Outcomes - Page 328: 2

Answer

Gel electrophoresis separates DNA based on mass. DNA is deposited into the negative end of the apparatus and is attracted to the positive end through a current. The smaller, lighter fragments move quicker than the bulkier ones, so the end result is a spread of scattered DNA fragments that are organized in increasing mass.

Work Step by Step

Gel electrophoresis separates DNA based on mass. DNA is deposited into the negative end of the apparatus and is attracted to the positive end through a current. The smaller, lighter fragments move quicker than the bulkier ones, so the end result is a spread of scattered DNA fragments that are organized in increasing mass.
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