To add to what carnelian replied, there are actually more than 20 amino acids. Archaea and bacteria domains use a couple different ones, making 23 or so known amino acids used. There are also tons of possible and some (like 700+, that I remember being taught, lol) documented examples of different amino acids, because all that it takes to be an amino acid is the basic carbon structure with the carboxylic acid and the nitrate group in their correct positions, with an R group that defines which amino acid you’re dealing with.
To add to what carnelian replied, there are actually more than 20 amino acids. Archaea and bacteria domains use a couple different ones, making 23 or so known amino acids used. There are also tons of possible and some (like 700+, that I remember being taught, lol) documented examples of different amino acids, because all that it takes to be an amino acid is the basic carbon structure with the carboxylic acid and the nitrate group in their correct positions, with an R group that defines which amino acid you’re dealing with.
Gorillas aren’t bacteria, archae, or chemists.