$cDNA$ probes are copied from the messenger $RNA$ $(mRNA)$ molecules with the help of:

$A$ probe,which is a molecule used to locate specific sequences in a mixture of $DNA$ or $RNA$ molecules,could be:

Due to the 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:

An antibiotic resistance gene in a vector usually helps in the selection of

What is the ampicillin resistance gene?

$A$ plasmid