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cis-trans test

(genetics) a test to define the unit of genetic function, based on whether two mutations of the same character occur in a single chromosome (the cis position) or in different cistrons in each chromosome of a homologous pair (the trans position)
Word Origin
C20: see cis-, trans-
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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