Agarose,extracted from seaweeds,is used in:

Which of the following is used in genetic engineering?

$A$ : $DNA$ ligase plays an important role in recombinant $DNA$ technology.
$R$ : The linking of antibiotic resistance gene with plasmid vector became possible by enzyme $DNA$ ligase.

Hind $II$ always cuts $DNA$ molecules at a particular point called a recognition sequence,which consists of: (in $bp$)

Cutting of a piece of $DNA$ from a plasmid was done with the help of $...A...$ enzymes,popularly known as $...B....$ Here $A$ and $B$ can be

What type of ends are produced when $DNA$ is cut by $EcoR\, I$?