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Also available:
World English Dictionary
Dictionnaire Français
position effect
po·si·tion ef·fect
noun
Definition:
genetic expression variable:
a change in a gene's expression depending on its location on the chromosome in relation to other genes
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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