<P> While the specific nucleotide sequence of an mRNA specifies which amino acids are incorporated into the protein product of the gene from which the mRNA is transcribed , the role of tRNA is to specify which sequence from the genetic code corresponds to which amino acid . The mRNA encodes a protein as a series of contiguous codons , each of which is recognized by a particular tRNA . One end of the tRNA matches the genetic code in a three - nucleotide sequence called the anticodon . The anticodon forms three complementary base pairs with a codon in mRNA during protein biosynthesis . On the other end of the tRNA is a covalent attachment to the amino acid that corresponds to the anticodon sequence . Each type of tRNA molecule can be attached to only one type of amino acid , so each organism has many types of tRNA . Because the genetic code contains multiple codons that specify the same amino acid , there are several tRNA molecules bearing different anticodons which carry the same amino acid . </P>
<P> While the specific nucleotide sequence of an mRNA specifies which amino acids are incorporated into the protein product of the gene from which the mRNA is transcribed , the role of tRNA is to specify which sequence from the genetic code corresponds to which amino acid . The mRNA encodes a protein as a series of contiguous codons , each of which is recognized by a particular tRNA . One end of the tRNA matches the genetic code in a three - nucleotide sequence called the anticodon . The anticodon forms three complementary base pairs with a codon in mRNA during protein biosynthesis . On the other end of the tRNA is a covalent attachment to the amino acid that corresponds to the anticodon sequence . Each type of tRNA molecule can be attached to only one type of amino acid , so each organism has many types of tRNA . Because the genetic code contains multiple codons that specify the same amino acid , there are several tRNA molecules bearing different anticodons which carry the same amino acid . </P>
where does the trna get the amino acid
where does the trna get the amino acid
mRNA
mRNA