How many different codons can code for the amino acid tryptophan (Trp)?
Answers
Answer:
Explanation:
Hi, I have a question related to the amino acid tryptophan.
I know that the common 20 amino acids are coded by several kinds of codon except for methionine (which is coded by AUG) and tryptophan (which is coded by UGG).
I understand that because methionine is the one to send ribosome a signal to start a translation process, it is coded by only AUG. If more than one amino acid can decide a start point, the coding sequence can be interrupted from unwanted locations.
However, tryptophan is neither a start nor stop amino acid, and is the one building block of polypeptide. Why does tryptophan have to be coded by only one codon? If there is any one who understand the reason for this, I would greatly appreciate an explanation for it.
Only one codon codes for the amino acid tryptophan (Trp).
Explanation:
Codon refers to the unique combination of three different or same nucleotides called triplets codes for the synthesis of different types of amino acids.
The genetic codon that codes for tryptophan amino acid are UGG. In the genetic code, only one codon called UGG codes for amino acid tryptophan. Tryptophan is one of the most important amino acids required for maintenance of nitrogen balance.