3 ms·
Changing it makes the organism non-viable, so a change there never enters a population. In contract DNA/RNA-mutations can be viable so happen all the time.
by dtech 7y ago
Changing it makes the organism non-viable, so a change there never enters a population. In contract DNA/RNA-mutations can be viable so happen all the time.
- gomijacogeo 7y agoThere's a tiny bit of variation across the tree-of-life, see https://en.wikipedia.org/wiki/Genetic_code#Alternative_genetic_codes https://en.wikipedia.org/wiki/Genetic_code#Alternative_genet... But the variation is in the one place you could possibly have it - by changing the interpretation of one or two of the three available STOP codons.