Prateek Asked :
Q. Protection by covalent attachment of proteins in a plasmid, is a method for?
A. increasing the conjugative abilities
B. protection of linear DNA
C. increasing the copy number
D. increasing cloning efficiency
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Explanation: Not all plasmids exist as circular molecules, linear plasmids have been found in some species and to protect them, methods are: repeated sequences ending in terminal DNA hairpin loop or the ends are protected by covalent attachment of a protein.