explain why if given the amino acid sequence of a protein, you are not able to give the exact nucleic acid sequence of the gene from which it came from?
2007-08-07 05:13:35 · 5 answers · asked by ashesanne 2 in Science & Mathematics ➔ Biology
The previous answers are correct. For example, the amino acid proline can be encoded by CCT, CCA, CCG, or CCC in the DNA. So you might know your protein contains proline, but you won't necessarily know the sequence of the DNA codon it came from.
2007-08-07 10:05:50 · answer #1 · answered by knowitall 3 · 0⤊ 0⤋
Because of the genetic code. Each amino acid (with about two exceptions) can be coded for by several codons. Therefore, you don't know exactly what codon and thus what base made an amino acid in mos cases.
2007-08-07 16:06:51 · answer #2 · answered by Anonymous · 0⤊ 0⤋
The problem there is that there is so much redundency in the AA coding. Most Amino Acids have two or more possible codons, and a few have 4 or even more alternatives.
2007-08-07 05:25:28 · answer #3 · answered by John R 7 · 0⤊ 0⤋
PART of it is to know the amino acid sequence of those two enzymes? Are you sure that's what the project asks for? It sounds about 100 times more advanced than any undergrad biology class. Please double check the assignment and repost. The information that you seem to be looking for, could be hundreds of pages long.
2016-05-20 23:12:38 · answer #4 · answered by ? 3 · 0⤊ 0⤋
To add to the above answer: this is often called degeneracy in the code. See the link below.
2007-08-07 05:59:39 · answer #5 · answered by Mark S, JPAA 7 · 0⤊ 0⤋