Why does a single DNA sequence encode 3 possible amino acid sequences?
Neither answer is correct. It’s because of reading frame. Each DNA codon encodes a single amino acid. But if the reading frame shifts just one base, the entire amino acid sequence will be different because each codon is different. Since you could frame shift two basepairs over or once in either direction, you could get three possible amino acid sequences all from the same identical strand of DNA. The wobble base has to do with degeneracy in the code. Meaning even though one of the basepairs in the codon changes, a lot of the time the same amino acid is encoded for.
