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Codons are three-letter codes that make up the genetic code. Both RNA and DNA have triplets known as codons. Each codon codes one of 20 amino acids that the body uses to synthesize amino acids. More »

www.reference.com Science Biology Molecular Biology & DNA

A codon is a sequence of three nucleotides in DNA or RNA that either codes for a particular amino acid or tells the cellular machinery to start or stop using the code. A group of codons starts with the initiation codon. ... More »

www.reference.com Science Biology Molecular Biology & DNA

Codon usage bias is the tendency of some organisms to use certain DNA triplets in preference to other, equally capable, triplets in building amino acids. Many of the 20 amino acids used by life can be built by different ... More »

www.reference.com Science Biology Molecular Biology & DNA
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There are 64 different possible codons to the genetic code. Each codon is composed of three of the four genetic bases: guanine and adenine, which are the purine bases, and cytosine and thymine or uracil, the pyrimidine b... More »

www.reference.com Science Biology Molecular Biology & DNA

In the production of proteins, codons refer to the three-base segments in messenger ribonucleic acid or mRNA, while anticodons are the three-base segments in transfer RNA or tRNA. The ribosomes, which are the structural ... More »

www.reference.com Science Biology Molecular Biology & DNA

As shown on the Nature.com website, the mRNA codons for phenylalanine are UUU and UUC. More than one mRNA codon translates to phenylalanine because there are 64 possible codons, but only 20 amino acids are used in the tr... More »

www.reference.com Science Biology Molecular Biology & DNA

The genetic code is said to be universal because nearly all living organisms on Earth use the same four-letter code to direct their metabolic functions and build bodies. A single sequence of nucleotides is able to synthe... More »

www.reference.com Science Biology Molecular Biology & DNA