Nucleotides are made up of a phosphate group, a five-ring sugar and a nitrogenous base. Nucleic acids, such as deoxyribonucleic acid (DNA) and ribonucleic (RNA), contain repeating nucleotides. Nucleotides link together t... More »

Nucleotides contain either ribose, found in RNA, or deoxyribose, found in DNA. Deoxyribose is not synthesized in the cell, it is produced by action of the enyme ribonucleotided reductase on ribonucleotide diphoshates. Ri... More »

Nucleotides are made up of a phosphate group, a nitrogen base and a pentose sugar. These structural units serve as the fundamental building blocks of nucleic acids, such as deoxyribonucleic acid (DNA) and ribonucleic aci... More »

Nucleic acids are made up of three components: a phosphate, a sugar and a nitrogenous base. The specific building blocks of DNA and RNA are slightly different, but they fall into the same three categories. More »

The monomers of DNA and RNA are nucleotides, which are made up of a phosphate group, a five-carbon sugar and a nitrogenous base. In DNA, the nitrogenous bases are adenine, cytosine, guanine and thymine. In RNA, the nitro... More »

DNA is a long molecule composed of two chains of smaller molecules called nucleotides, each which contain a region of nitrogen called the nitrogenous base, a carbon-based sugar molecule called deoxyribose and a region of... More »

A codon is a set of three nucleotides that code for an amino acid or act as a stop signal to tell the cell machinery when to halt protein translation. Codons are found in both DNA and messenger RNA, and a series of codon... More »

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