A method for identifying interactions of DNA, RNA, and/or protein molecules in a cell includes distributing a cell lysate or fraction thereof into a plurality of lysate suspensions, adding a unique nucleotide tag to each lysate suspension to tag each DNA, RNA, and/or protein, pooling the tagged suspensions, and repeating the tagging, pooling, and sorting (distributing) as desired to decrease the probability that non-interacting molecules will receive all of the same nucleotide tags.