In a chemical process,the $DNA$ fragments produced by restriction endonucleases can be separated by:

In the $PCR$ technique,how are the two strands of $DNA$ separated?

Which of the following steps are involved in the process of recombinant biotechnology? Arrange in correct order.
$I.$ Extraction of the desired gene product
$II.$ Amplification of the gene of interest
$III.$ Isolation of a desired $DNA$ fragment
$IV.$ Ligation of the $DNA$ fragment into a vector
$V.$ Insertion of recombinant $DNA$ into the host
Correct order is:

Identify the diagram given below.

The Polymerase Chain Reaction $(PCR)$ is a reaction in which amplification of specific $DNA$ sequences is carried out in vitro. This statement is

$A$ transformed bacterium with a human gene fails to produce the desired protein. The reason could be: