Which system is not present in a bioreactor?

Having become an expert on gel electrophoresis,you are asked to examine a gel for a colleague. Where would you find the smallest segment of $DNA$?

The entry of $t-DNA$ into plants is associated with which of the following?

Can a disease be detected before its symptoms appear? Explain the principle involved.

$PCR$ is a three-step process based on temperature,which follows the sequence of ........

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: