Two bacteria found to be very useful in genetic engineering experiments are

Which of the following is a genetic vector?

The function of the 'ori' site in a vector is to

Which enzymes are responsible for the breakdown of bacterial,plant,and fungal cell walls,respectively?

$pBR322$ contains the recognition sites for which of the following endonucleases at the $amp^R$ site?

Select the option that excludes characteristics applicable to plasmids:
$(a)$. Circular $DNA$
$(b)$. Linear $DNA$
$(c)$. Present in all bacteria
$(d)$. Contain essential genes
$(e)$. Extra chromosomal self-replicating