A(n)____________ is a piece of DNA with a group of genes that are transcribed together as a unit.
A)promoter
B)repressor
C)operator
D)operon

Question

Quizplus · Accepted Answer

An operon is a functional unit of DNA that contains a group of genes that are transcribed together as a single mRNA molecule. This mRNA is then translated into individual proteins. The operon includes a promoter, where RNA polymerase binds to initiate transcription, and an operator, which is a regulatory region that controls the expression of the operon by either allowing or preventing the binding of RNA polymerase. Repressors are proteins that bind to the operator to block RNA polymerase from binding and transcribing the operon. Therefore, the correct answer is D) operon.

A(n)____________ Is a Piece of DNA with a Group of Genes