Question

when e. coli cells produce the amino acid tryptophan, a cluster of five genes is transcribed together. this cluster of genes is referred to as the
multiple choice
trp promoter.
trp operon.
trp transcriptional operator.
trp suppressor.
trp regulator.

Explanation:

In E. coli, the cluster of genes involved in tryptophan production that are transcribed together is called the trp operon. An operon is a group of genes that are regulated as a single unit. The trp promoter initiates transcription, the trp transcriptional operator is part of the regulatory region, the trp suppressor and trp regulator are involved in controlling gene - expression but not the name for the gene - cluster.

Answer:

B. trp operon