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Q: Do all polypeptides begin with amino acid coded for by the start codon?
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First codon to form an amino acid?

AUG. Methionine is the first and start codon in forming polypeptides.


If one base coded for one amino acid what is the maximum number of codes there will be?

There are 21 amino acids found in eukaryotes. Three bases represent a codon, and each codon codes for one amino acid.


What amino acid does rna sequence AAA specify?

No amino acid is coded for. It is a stop codon that instructs to stop the process of translation.


How codons are used to build protein?

Aside from starting and stopping the translation process each codon triplet is the code for one amino acid. As there are 64 codons the amino acid code is redundant. So, ACU, could be the code for one amino acid in the mRNA coding sequence. Google codon table.


What is the maximum number of amino acids that could be coded for by a sextion of mrna with the sequence guucagaacugu?

A codon is three bases long - so this section of mRNA would have 4 codons; UGA-UUC-AGU-AAC.Each codon relates to a specific amino acid (but several codons can code for the same amino acid, for example both UUU and UUC code for the amino acid Phenylalanine).Normally if you have four codons, such as this section of mRNA, the maximum number of amino acids you could have would be four. However, the first codon in this section, UGA, is actually a STOP codon. This means that when the ribosome reaches this codon, no further amino acids will be joined.This means that no amino acids could be coded for with this section of mRNA. (If the order of the codons was reversed, making the STOP codon last, then the answer would be three).

Related questions

First codon to form an amino acid?

AUG. Methionine is the first and start codon in forming polypeptides.


What amino acid is coded for by the codon AUC?

The anticodon would be UAG, and the amino acid coded for is isoleucine.


Which amino acid is coded by the DNA codon TAC?

It is a triplet of bases (codon) coding for the amino acid tyrosine


What amino acid is coded for by this sequence before mutation?

The neutral mutation does not change the amino acid coded for by the codon. A good example is the RNA codon that could be the CCA, CCC or the CCG.


What amino acid is coded for by this sequence before the mutation?

The neutral mutation does not change the amino acid coded for by the codon. A good example is the RNA codon that could be the CCA, CCC or the CCG.


How many codons are incolved ina polypeoptide that has 5 amino acids?

Simple answer FIVE. Each codon is made up of links. There are three links to the codon. Each codon codes for a single amino acid. A polypeptide is a string of amino acids. The term is usually used for smaller polypeptide chains. Larger chains are usually referred to as proteins although not all proteins are simply polypeptides. Heomoglobin, for example, contains a heme group.


Which codon tells where a sequence of amino acids is to begin?

i think its ACT/UGA. ya, tht sounds right now tht ive typed it out


If one base coded for one amino acid what is the maximum number of codes there will be?

There are 21 amino acids found in eukaryotes. Three bases represent a codon, and each codon codes for one amino acid.


What amino acid does rna sequence AAA specify?

No amino acid is coded for. It is a stop codon that instructs to stop the process of translation.


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.


How many amino acids make a codon?

One codon specifies a specific amino acid. However, more than one codon can code for the same amino acid. For example, the codon GUU codes for the specific amino acid valine; and the codons GUC, GUA, and GUG also code for valine.


How many different amino acids are known to be incorported into proein?

Twenty-two amino acids are naturally incorporated into polypeptides and are called proteinogenic or natural amino acids. Of these, 20 are encoded by the universal genetic code. The remaining 2, selenocysteine and pyrrolysine, are incorporated into proteins by unique synthetic mechanisms. Selenocysteine is incorporated when the mRNA being translated includes a SECIS element, which causes the UGA codon to encode selenocysteine instead of a stop codon. Pyrrolysine is used by some methanogenic archaea in enzymes that they use to produce methane. It is coded for with the codon UAG, which is normally a stop codon in other organisms. This UAG codon is followed by a PYLIS downstream sequence.