Bacteria protect themselves from viruses by fragmenting viral DNA upon entry with _____________.<span><br> &…

_____ is an autonomously replicating circular extra-chromosomal DNA.

<span>To carry out a polymerase chain reaction (PCR), one must have the catalytic DNA polymerase and</span>&…

__ is a hydrophilic molecule.

Name the technique used for separation of DNA fragments.</h2></div>

<span>Restriction enzyme was discovered by</span></h2></div>

The usual source of restriction endonucleases used in gene cloning is from <span><br> </span>…

DNA is _____ charged.