Biology / Unit 6 Bio 1311 short lesson, about 20 seconds
Levels of Gene-Expression Regulation, Overview
Captions available
The idea
Gene expression is regulated at several levels, including epigenetic, transcriptional, post-transcriptional, translational, and post-translational control.
In practice
A cell can silence a gene by packaging its DNA tightly, blocking transcription, degrading its mRNA, blocking translation, or degrading the finished protein.
Where people slip
These levels act at different stages along the central dogma — a change at one level need not imply a matching change at another.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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