Biology / Unit 6 Bio 1313 short lesson, about 20 seconds
Operon Structure
Captions available
The idea
A prokaryotic operon groups several genes under one promoter and one operator, so a single regulatory event switches all the genes together.
In practice
An operon's operator sequence sits between its promoter and structural genes, controlling whether RNA polymerase can transcribe them.
Where people slip
An operon's genes are all transcribed together as one unit — they are not each controlled by a separate promoter.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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