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_______________ and _____________ are amino acids that are each represented by only one...

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jttw | Honors

Posted November 28, 2011 at 5:10 AM via web

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_______________ and _____________ are amino acids that are each represented by only one condon.

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ncchemist | eNotes Employee

Posted November 28, 2011 at 8:54 AM (Answer #1)

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Codons are a linear sequence of three nucleotides in DNA that correspond to a particular amino acid.  They are an important part of protein biosynthesis in the cell.  The DNA is converted to messenger RNA which in turn is converted in the ribosome to a particular sequence of amino acids to make a protein.  The codons denote the specific sequence of amino acids to be put together to make a specific protein.  Since there are 4 different nucleic acids in DNA (and RNA), there are 64 different codons available for about 20 commonly used amino acids.  As a result, most amino acids are represented by more than one codon.  Two amino acids, however, have only one codon to represent them and they are methionine and tryptophan.

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pipod55 | Student, Grade 9 | eNoter

Posted November 28, 2011 at 6:51 AM (Answer #2)

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Methionine (also the start codon) [Met/M]

Tryptophan [Trp/W]

(See source)

See the RNA Codon Table Section.

Look under the inverse table.

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