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Genetics · Problem type
Silent, missense, nonsense or frameshift?
Use this for “CCA becomes CCG in a gene’s mRNA. What kind of mutation is it?”
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What does the mutation do to the protein?
Tap a card, then tap its group.
Find the codon with the lit base and read its amino acid before and after; a change in length moves the boxes.
Assumptions
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The mRNA is read three bases at a time from the start codon AUG, so one changed base changes one codon.
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Most amino acids have several codons, so some changes leave the protein the same.
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An insertion or deletion of a number of bases that is not a multiple of 3 regroups every codon after it.
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