Polycistronic genes that contain a coding sequence for proteins that are only involved in one biochemical process are called
A) exons.
B) operons.
C) introns.
D) promoters.

Question

Quizplus · Accepted Answer

Polycistronic genes are common in prokaryotes and are organized into operons. An operon is a group of genes that are transcribed together into a single mRNA molecule. Each gene within an operon codes for a protein that is involved in the same biochemical process. Therefore, the correct choice is B) operons. Exons are coding sequences found in eukaryotic genes, introns are non-coding sequences found in eukaryotic genes, and promoters are regulatory sequences that initiate transcription.

Polycistronic Genes That Contain a Coding Sequence for Proteins That