Due to chloramphenicol resistance gene, one is able to select a transformed cell in the presence of chloramphenicol. The chloramphenicol resistance gene in this case is called

Which one of the following statement is not true regarding gel electrophoresis technique?

Agarose is a natural polymer extracted from

Which cannot be used for direct gene transfer

In the naming of restriction enzymes the first letter is derived from$ …A…$ name and next two letters from the $…B…$ and fourth letter from $…C…$ of $…D…$ where the enzymes are extracted

$A$ to $D$ in the statement can be