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if any one is good at putting diagrams in (my formating skill are sub par), i created one and up loaded it to commons for general use,

http://commons.wikimedia.org/wiki/Image:Blue_white_assay_Ecoli.jpg -- Dylan2106 15:12, 8 November 2007 (UTC) reply

Errr... some references...maybe?? —Preceding unsigned comment added by 200.118.220.204 ( talk) 02:17, 9 September 2008 (UTC) reply

It may be helpful to mention that blue-white screening can be run on a gel which helps with further confirmation of whether or not the white colonies actually produced the gene with the insert. Aaqquino ( talk) 21:15, 11 February 2016 (UTC) reply