The following diagram showing restriction sites in E. coli cloning vector or pBR322. Find the role of 'X' and 'Y' genes. [2024]

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In the given diagram showing restriction sites in E.coli cloning vector pBR322, X and Y represent ori and rop, respectively. The gene ‘X’ is responsible for controlling the copy number of the linked DNA and ‘Y’ for protein involved in the replication of plasmid.