Question

what are terminators and initiators?

Answer 1

Terminator: antiterminator protein A protein that, when bound at its normal attachment sites in DNA, lets RNA polymerase read through normal terminator sequences (eg the N- and Q- gene products of phage lambda).

Intiators: The substance or molecule (other than reactant) that initiates a chain reaction, as in
polymerization; an example is acetyl peroxide.
(computer science) A part of an operating system of a large computer that runs several jobs at the same time, setting up the job, monitoring its progress, and performing any necessary cleanup after the job's completion.
(ordnance) A device used as the first element of an explosive train, such as a detonator or squib, which upon receipt of the proper mechanical or electrical impulse produces a burning or detonating action; it generally contains a small quantity of a sensitive explosive.