Question
Describe the essential features of an ideal cloning vector and explain the structure of pBR322.
Answer :
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An ideal cloning vector must possess several key features to facilitate the successful cloning and manipulation of foreign DNA. First, it should have a well-defined origin of replication (ORI) to ensure its independent replication within a host cell. The vector must also contain multiple cloning sites (MCS) to provide flexibility for inserting various genes. A selectable marker, such as an antibiotic resistance gene, is essential for identifying transformed cells. Furthermore, it should be
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