MODEL
Codon and mutation studio
Explore all 64 codons and substitution outcomes.
Model
All 64 codons of the standard RNA code. RNA uses U rather than DNA’s T.
Glu → Glu
Synonymous change
A substitution preserves sequence length. An insertion or deletion not divisible by three can cause a frameshift; this selector models substitutions only.
Standard three-letter amino-acid abbreviations. Mitochondrial exceptions exist. A synonymous change need not be neutral; one codon alone cannot predict a whole protein’s function.
Explain what you observed
How can you isolate the effect of one factor?
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Your study notes
Take the next step
Connect this activity with your lesson notes and chapter practice.
Read a related learning guide →Practise Inheritance →Open the student notes folder ↗Concepts and sources
Chapter extension: selected concepts, not complete syllabus coverage.
Read the supporting source ↗PMDC curriculum ↗Questions and explanations are original teaching material; these are not official exam questions.