fluctuation test

[‚flək·chə′wā·shən ‚test] (microbiology) A method of demonstrating that bacterial mutations preexist in a population before they are selected; a large parent population is divided into small parts which are grown independently and the number of mutants in each subculture determined; the number of mutants in the subculture will fluctuate because in some a mutant arises early (giving a large number of progeny), while in others the mutant arises late and gives few progeny.

单词	fluctuation test
释义	fluctuation test fluctuation test [‚flək·chə′wā·shən ‚test] (microbiology) A method of demonstrating that bacterial mutations preexist in a population before they are selected; a large parent population is divided into small parts which are grown independently and the number of mutants in each subculture determined; the number of mutants in the subculture will fluctuate because in some a mutant arises early (giving a large number of progeny), while in others the mutant arises late and gives few progeny.
随便看	to give the lie to to give the mitten to to give the once-over to give the sack to to give the shirt off one's back to give the whetstone to give to the dogs to give to wife to give up the ghost to give vent to to give way to give what for to glaum at togliatti togliattigrad togliatti, palmiro togliatti, russia toglug-timur to glut the market togm tog method togn to gnash one's teeth to go to-go