twin method

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twin meth·od

a general means of genetic analysis that capitalizes on the fact that whereas twins have the same age and the same intrauterine environment, identical (monozygotic) twins have the same genotype but dizygotic twins are no more alike than sibs and may be of different gender.
References in periodicals archive ?
Even though 13 bands played this show, only five were worth seeing: Korn, Evanescence, Atreyu, Flyleaf (all of whom played the main stage) and Twin Method on the second stage.
There were no differences in means or variances for the two zygosity groups, thus fulfilling one of the assumptions of the twin method.
Disclosure, the twin method which is used alongside Retrospect, plays a lesser part in Iris Murdoch's novels, as it does in her predecessor, Trollope.