Question

What are operons?

Answer 1

Operon:

1. Operons are regulatory complexes that control protein synthesis based on cell requirements.
2. The operon genes occur continuously on the DNA and are controlled by a single promoter.
3. The promoter is in turn regulated by regulatory elements based on the cell's metabolic need.
4. The main constituents of the operon are a promoter sequence, operator sequence, and structural genes.
5. They participate in gene regulation by inducing or repressing genes.
6. Operons are commonly found in bacterias, viruses, and bacteriophages.
7. Lac operon and trp operon are operons found in prokaryotes.