the 3cba degradative genes are found to be clustered in one region of the map ( ecori fragment a ) as judged by molecular cloning with a broad host range vector plafri . a portion of the 3cba degradative gene cluster appears to undergo ready recombination with the chromosome , even in a reca host , suggesting the probable transposable nature of such gene cluster .
C0034865
recombination
C1419240
reca