Test yourself on Protein Synthesis — Transcription and Translation with exam style questions, marked instantly.
Flashcards that come back just before you would forget them.
A revision plan that remembers what you know and shows what to do next.
See which topics you have nailed and which need another look.
Quiz yourself on Protein Synthesis — Transcription and TranslationGet your flashcardsBuild my revision planTrack my progress⚖️ Types of Gene Mutation: Substitution vs Deletion vs Insertion
| Mutation type | What happens to DNA | Effect on protein | Severity |
|---|---|---|---|
| Substitution | One base replaced by a different base | At most one codon changes → at most one amino acid changes. If degenerate, protein may be unchanged (silent mutation). | Variable — can be harmless or serious (e.g. sickle cell) |
| Deletion | One (or more) base removed from the sequence | Frameshift: ALL codons after the deletion point are read in the wrong frame → protein completely altered from that point | Usually severe — most of the protein sequence is wrong |
| Insertion | One (or more) extra base inserted into the sequence | Frameshift: same as deletion — all codons after insertion point are wrong | Usually severe — same as deletion |
Make this stick
Signing in gives access to all PrepWise features.