Identify the parts $A$ and $B$ from the given figure of the $pBR322$ cloning vector:

The transfer of proteins from an electrophoretic gel to a nitrocellulose membrane is called....

Identify '$Q$' and '$R$' in the given figure of a stirred-tank bioreactor.

Given below are two statements: one is labelled as Assertion $(A)$ and the other is labelled as Reason $(R)$.
Assertion $(A):$
Polymerase chain reaction is used in $DNA$ amplification.
Reason $(R):$
The ampicillin resistant gene is used as a selectable marker to check transformation.
In the light of the above statements,choose the correct answer from the options given below:

'Cloning' is meant for

Identify the correct match for the given apparatus.
Apparatus $\to$ Function