🧬ap biology review

Trp operon

Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 examWritten by the Fiveable Content Team • Last updated September 2025

Definition

The trp operon is a set of genes in bacteria that are responsible for the synthesis of tryptophan, an essential amino acid. It consists of a promoter region, operator region, and structural genes.