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CGP EDU Academic Team
Published on: August 21, 2026
For a DNA to function as a cloning vector the most essential requirement is
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Verified by ExpertsThe correct answer is:
D
For a DNA to function as a cloning vector, the most essential requirement is an origin of replication (ori).
• The ori site allows the vector to replicate independently inside the host cell, which is necessary for cloning.
• Without ori, the DNA will not replicate and cannot be maintained in the host.
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