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ex•on



Pronunciation: (ek'son), [key]
—n.
(in Britain) one of four yeomen of the guard who act as commanding officers in the absence of higher authority. Also called exempt.

ex•on



Pronunciation: (ek'son), [key]
—n. Genetics.
any portion of an interrupted gene that is represented in the RNA product and is translated into protein. Cf. intron.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

exogenousexonarthex
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