The most common arrangement of protein-coding genes in bacteria are those where the genes encoding proteins that work together are arranged in a contiguous array of DNA called:
A)an operon.
B)a terminator.
C)a promoter.
D)an operator.

Question

Quizplus · Accepted Answer

An operon is a contiguous array of DNA containing a cluster of genes that are transcribed together. In bacteria, it is the most common arrangement of protein-coding genes, where genes encoding proteins that work together are usually found within the same operon. The operon is regulated by a promoter (a DNA sequence where RNA polymerase binds to initiate transcription) and an operator (a DNA sequence where a repressor protein can bind to prevent transcription). The terminator is a sequence of DNA at the end of a gene that signals the end of transcription.

The Most Common Arrangement of Protein-Coding Genes in Bacteria Are