Three nucleotides are required for an amino acid. These nucleotides are an amine, carbolic acid, and a side chain specific to the amino acid.
Nine nucleotides are needed to specify three amino acids.
CONDON
TRIPLET CODE
TRIPLET CODE
three. (= 9 nucleotides)
A codon, or a 3-base code is required to code for one amino acid.
A codon of nucleotides codes for an amino acid. The combination of nucleotides in a codon determines the amino acid the codon makes.
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None! The reason is: there are no nucleotides in proteins. Nucleotides are the monomers (building blocks) of nucleic acids. The monomers of proteins are amino acids. The relationship between nucleotides and amino acids is the genetic code. In brief, the genetic code works like this: within a region of DNA that codes for a polypeptide chain (from which a protein will be made) a group of three adjacent nucleotides code for one amino acid.
In the genetic code, a sequence of three nucleotides forms a codon, which codes for one amino acid. So for each amino acid, there are three nucleotides. Therefore, 600 nucleotides are needed to make 200 amino acids.
A DNA molecule is composed of long chains of DNA nucleotides.
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.