In recombinant $DNA$ technology,a vector is defined as .....

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

Identify the incorrect statement regarding plasmids.

Plasmid is used as a carrier (vector) because:

What is the total number of nucleotides in the recognition sequence for $EcoR\,I$?

Which of the following statements are not true regarding restriction endonucleases?
$A$. They are called molecular scissors.
$B$. These are the enzymes responsible for restricting the growth of bacteriophages in $E. coli$.
$C$. They cut the $DNA$ only at the centre of the palindromic sites.
$D$. They remove nucleotides only from the ends of $DNA$ fragments.
$E$. They recognise specific palindromic base-pair sequences.
Choose the answer from the options given below: