others had proposed that all transposition is replicative , occurring in a rolling circle structure , and that the way dna strands are joined when replication terminates determines whether a simple insertion or a cointegrate is formed. -- we selected for the transposition of amp and cam resistance markers from pbr322 : :tn9 plasmids to an f factor in reca-e. coli and identified products containing three and four copies of is1 , corresponding to true cointegrates ( from monomeric plasmids ) , and simple insertions ( from dimeric plasmids ) .
C0012854
dna
C0598312
replication