Select the correct option for $M13$.

$EcoRI$ is a restriction endonuclease. What does the part "co" represent?

Which vector can clone small pieces of $DNA$?

The given figure shows the $pBR322$ plasmid. Which of the following parts encodes the proteins involved in the replication of the plasmid?

Which restriction site is present in the $tet^{R}$ gene in $pBR322$?

Restriction enzymes that are used in the construction of recombinant $DNA$ are endonucleases which cut the $DNA$ at 'specific-recognition sequence'. What would be the disadvantage if they do not cut the $DNA$ at specific-recognition sequence?