nucleotides

Cultural  

1. The molecules that form the basic modular structure of the double helix of the DNA molecule. A nucleotide consists of three molecules — a sugar, a phosphate group, and a molecule called a base. If the double helix is a twisted ladder, the sugar and phosphates form the sides of the ladder and pairs of bases form the rungs. There are four different bases, usually abbreviated A, C, G, and T for adenine, cytosine, guanine, and thymine). The order of bases in DNA determines the genetic code.

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nucleotides

Human DNA is built from long sequences of three-letter units made up of four nucleotides.

From Science Daily ● Apr. 9, 2026

The promoter region of the dcw operon contains four repeated segments, or "boxes," each composed of six nucleotides.

From Science Daily ● Mar. 14, 2026

If COMs were embedded in their building materials from the start, then these worlds may also contain the molecular ingredients needed for prebiotic chemistry, including the formation of amino acids and nucleotides.

From Science Daily ● Mar. 1, 2026

DNA and RNA consist of chains of smaller units known as nucleotides, while proteins are built from amino acids.

From Science Daily ● Jan. 4, 2026

It is the sequence or ordering of the nucleotides along either of the constituent strands that is the language of life.

From "Cosmos" by Carl Sagan