Gene expression

Why this matters

Ameloblasts, odontoblasts, salivary cells and oral keratinocytes share essentially the same genome but express different gene programmes. Their RNA and protein outputs create distinct structures, secretions and tissue behaviours.

You will be able to

1. 1.Explain eukaryotic transcription.
2. 2.Track pre-mRNA processing and export.
3. 3.Decode mRNA using the genetic code.
4. 4.Describe ribosomal protein synthesis.
5. 5.Locate major gene-regulatory controls.
6. 6.Explain epigenetic regulation precisely.

The 12 cards in this lesson

1. 01Gene expression converts selected information into function
2. 02Transcription copies one DNA strand into RNA
3. 03From accessible gene to functional protein
4. 04Three nuclear RNA polymerases divide the work
5. 05Pre-mRNA becomes an export-ready messenger
6. 06Alternative RNA processing expands possible outputs
7. 07The genetic code sets a triplet reading frame
8. 08Translation uses three RNA roles in one ribosome
9. 09Translation proceeds through initiation, elongation and termination
10. 10Gene regulation acts at many checkpoints
11. 11Epigenetic regulation changes access without changing sequence
12. 12Gene expression across dental biology

You have got it when

You are ready to continue when you can predict the RNA sequence from a DNA template, identify the processing and translation step involved, and name a plausible control point without calling every regulatory event epigenetic.