Purging and cleaning To provide a more appealingproduct for live markets, a smallnumber of producers have adopt-ed the practice of purging craw-fish before selling them. Thisprocess cleans the exoskeleton ofmud and debris and eliminates orreduces digesta in the intestine(Fig. 10), which consumers mayfind unappealing.
10 hilariously insightful foreign words. DNA electrophoresis is a method used to sort DNA molecules by length. Pieces of DNA are suspended in a tray of gel and subjected to an electric field, which causes them to migrate toward one end of the tray. The DNA separates out into bands, with the distance from the electrode corresponding to length of the strand.
Biotechnology Index Glossary Principles of Gel Electrophoresis Electrophoresis is a technique used to separate and sometimes purify macromolecules-especially proteins and nucleic acids-that differ in size, charge or conformation.As such, it is one of the most widely-used techniques in biochemistry and molecular biology.n contrast to agarose, polyacrylamide gels are used extensively for separating and characterizing mixtures of proteins. Electrophoresis is a technique used to separate and sometimes purify macromolecules-especially proteins and nucleic acids-that differ in size, charge or conformation.