Question

Why plasmids are preferred as vectors in recombinant DNA technology ?

• A. They can easily bind with host DNA
• B. They carry antibiotic resistant genes
• C. They have the ability to replicate on their own
• D. They can shuttle between prokaryotic and eukaryotic cells

Answer 1

The correct option is C They have the ability to replicate on their own

A Plasmid is a small DNA molecule within a cell that is physically separated from a chromosomal DNA and can replicate independently. Plasmid serves as a vehicle for genes of interest. They are easy to identify, isolate and introduce. They also have the tendency to replicate as their own creating clones of genes.

So, the correct option is 'they have the ability to replicate on their own'.