In this technique,large quantities of biotechnological products such as antibiotics,vaccines,and enzymes are produced by maintaining and growing only the desired microbes/eukaryotic cells in a sterile environment.

Separated $DNA$ fragments on an agarose gel can be visualized after staining with ....

Given below are two statements:
Statement $I:$ The $\text{DNA}$ fragments extracted from gel electrophoresis can be used in the construction of recombinant $\text{DNA}$.
Statement $II:$ Smaller size $\text{DNA}$ fragments are observed near the anode while larger fragments are found near the wells in an agarose gel.
In the light of the above statements,choose the most appropriate answer from the options given below:

Which of the following is the correct sequence of steps in the Polymerase Chain Reaction $(PCR)$?

The $Polyethylene \text{ } Glycol$ $(PEG)$ method is used for:

$A$: To extract $RNA$ from tomato cells,it must first be treated with cellulase,protease,and then deoxyribonuclease.
$R$: Deoxyribonuclease will digest $DNA$ while $RNA$ will be intact.