Question

Plasmids are vectors for gene cloning because they

• A. Self replicate in bacterial cells
• B. Replicate freely outside bacterial cells
• C. Can be multiplied in culture
• D. Can be multiplied in laboratories using enzymes

Answer 1

The correct option is A Self replicate in bacterial cells

Scientists have taken advantage of plasmids to use them as tools to clone, transfer, and manipulate genes. Researches can insert DNA fragments or genes into a plasmid vector, creating a so-called recombinant plasmid. This plasmid can be introduced into a bacterium by way of the process called transformation.

So, option A is the correct option.