Answer to Question #214508 in Molecular Biology for Moe

Question

2.3) Give short explanations for the following terms: promoter; “upstream” end of a transcription unit; “downstream” end of a transcription unit; Poly A tail.

Answer 1

A promoter is a sequence of DNA needed to turn a gene on or off.

Upstream refers to points in production that originate early on in the processes.

Downstream where products get produced and distributed.