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resistance transfer factor

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R factor

–noun
a genetic component of some bacteria that provides resistance to antibiotics and can be transferred from one bacterium to another by conjugation.


Origin:
1960–65; r(esistance) factor
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2009.
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Medical Dictionary

Main Entry: R factor
Pronunciation: 'är-
Function: noun
: a group of genes present in some bacteria that provide a basis for resistance to antibioticsand can be transferred from cell to cell by conjugation
Merriam-Webster's Medical Dictionary, © 2002 Merriam-Webster, Inc.
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Medical Dictionary

resistance transfer factor n.
The transfer gene of a conjugative resistance plasmid.

R factor n.
See resistance plasmid.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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