Transcription vs translation
Quick answer: Transcription builds RNA from DNA; translation builds polypeptides from mRNA.
These are sequential core steps for protein-coding gene expression.
Use the table rows first for rapid contrast, then read the similarity and difference sections to lock in exam-ready language. Finish with the “when to use which term” guidance before attempting the self-checks.
Diagram
Transcription copies genetic information from DNA into RNA, starting at a promoter and guided by base pairing.
Side-by-side comparison
| Feature | Transcription | Translation |
|---|---|---|
| Template | DNA | mRNA |
| Product | RNA | Polypeptide/protein |
| Machine | RNA polymerase | Ribosome |
| Location (euk.) | Nucleus | Cytoplasm / rough ER |
| Base pairing | DNA–RNA complementarity | Codon–anticodon (mRNA–tRNA) |
| Central dogma step | DNA → RNA | RNA → protein |
Similarities
Both are essential for protein-coding expression.
Both rely on base-pairing rules.
Differences
Different templates, products, machines, and locations in eukaryotes.
Transcription precedes translation for a given message.
When each term applies
Use transcription when RNA is made.
Use translation when proteins are made from mRNA.
Common confusion
Do not say translation occurs on DNA in eukaryotes.
Common questions
Which comes first for a protein-coding gene?
Transcription.
Which uses ribosomes?
Translation.
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