Figure 2From: Chromosomal duplications and cointegrates generated by the bacteriophage lamdba Red system in Escherichia coli K-12Cointegrates formed by recombination between circular λ cat and the bacterial chromosome. A. The cointegrate formed by recombination between the chromosome and λ cat989, which bears only the left-side lac flank, leaves the chromosomal lacZ gene intact. B. The cointegrate formed by recombination between the chromosome and λ cat988, which bears only the right-side lac flank, disrupts the chromosomal lacZ gene.Back to article page