The part of the plasmid that codes for proteins involved in the replication of the $pBR322$ plasmid is:

The enzymes commonly used in genetic engineering are:

Select the incorrect statement.

The diagram below represents a schematic of recombinant $DNA$ technology. Which enzymes are responsible for the processes $P$ and $Q$ respectively?
$\quad\quad P\quad\quad\quad Q$

An enzyme catalysing the removal of nucleotides from the ends of $DNA$ is:

The enzyme known as restriction endonuclease: