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Are amino acids only represented by one codon?
No. Amino acids are not always represented by only one codon. Several may code for one amino acid.
When a protein is synthesized what amino acid is always the first amino acid that is positioned during any protein synthesis?
"AUG" actually corresponds to a region of code on mRNA and is NOT an amino acid. The tRNA that has the anticodon 5' CAU 3' and recognizes AUG is a tRNA charged with Methionine. Therefore, methionine is the first amino acid incorporated into a growing polypeptide. Note this is true for only eukaryotes, prokaryotes have N-formyl methionine as their first amino acid.
Which amino acids have only one codon?
There are two different amino acids that only have one codon. Methionine thatâ??s DNA codon is ATG and Tryptophan thatâ??s DNA codon is TGG.
What identifies the specific amino acid for tRNA?
The messenger RNA strand. When the tRNA inserts itself between the two portions of the ribosome attached to the mRNA strand, the specific tRNA depends on the 3 nitrogen bases on the mRNA (the codon) that are about to be read. The tRNA that arrives has a corresponding "anticodon" to go with the codon on the mRNA. For example, if the nitrogen bases on the mRNA strand are adenine, guanine, and cytocine the tRNA will have an anticodon of uracil, cytocine and guanine. The tRNA that has the corresponding anticodon to the codon on the mRNA will bring with it a specific amino acid but it is the codon on the mRNA that ultimately decided which amino acid is next in line.
How many nucleotides make an amino acid?
3 are needed. As there are 20 amino acids used in proteins, each amino acid would have to be encoded by a minimum of three nucleotides. For example, a code of two consecutive nucleotides could specify a maximum of 16 (42) different amino acids, excluding stop and start signals. A code of three consecutive nucleotides has 64(43) different members and thus can easily accommodate the 20 amino acids plus a signal to stop protein synthesis.
Are amino acids only represented by one codon?
No. Amino acids are not always represented by only one codon. Several may code for one amino acid.
There can only be one what for every codon?
There can only be one amino acid for every codon. Tryptophan and Methionine are the types of amino acids that correspond to codon.
For any codon there can only be one?
There is only one corresponding amino acid for each codon. Each codon codes specifically for one amino acid (however, an amino acid can be coded for by several different codons). For example: CAU codes for Histamine (and not any other amino acid) But, CAC also codes for Histamine.
For any one codon there can be only one what?
For any one codon, there can be only one amino acid that it codes for. Each codon in the genetic code corresponds to a specific amino acid, ensuring that the correct sequence of amino acids is produced during protein synthesis.
All amino acids are specified by only one codon?
No. Some are specified by only one codon eg. methionine and tryptophan. But some have more than one codon eg. threonine.
What are 2 amino acids that are represented by only one codon?
Methionine (Met) is represented by the codon AUG, which also serves as the start codon. Tryptophan (Trp) is represented by the codon UGG.
What are the amino acids on the codon table?
Each codon codes for only one amino acid, or a codon is a start or stop codon, but no codon codes for more than one amino acid.
What amino acid is encoded by the initiation codon AUG?
The amino acid that is encoded by the initiation codon AUG is methionine. It is the only amino acid which is specified by just one codon.
Do stop codon have an amino acid?
A stop codon (UGA, UAA, UAG) only codes for a stop. No amino acid results from a stop codon.
What two amino acids are represented with only one codon?
They are triptopan and methionine.Codons are UGG and AUG respectively.
What do codons UGG and AUG have in common?
AUG is the only codon which codes for methionine and UGG is the only amino acid that codes for Tryptophan. These are the only codons which have only one codon to represent their specific amino acid.
Is it possible for mutations to go unnoticed in mRNA?
Yes it is. There are more triplet codons than there are [biologically active] amino acids that need to be represented in the Cell, so that there is some duplication of codon/amino acid 'alignment'. This occurs only in the third base position of the triplet codon - the 'wobble base' position - so if a mutation occurred in the wobble (third) position and the codon was one of the few that was not alone in its amino acid specificity this mutation would go unnoticed.
