Science / Chemistry / Nucleotide: A molecule which is a basic building block of nucleic acids and which plays a key role in energy transfer in biochemical reactions. Nucleotides consist of a five-carbon sugar, a heterocyclic nitrogen-containing organic base, and a phosphate group.


Science / Biology / Nucleotides: The subunits of nucleic acids; composed of a phosphate, a sugar, and a nitrogen-containing base. The fundamental structural unit of the nucleic acid group of organic macromolecules. Some nucleotides a MORE

Nucleotide Base

Science / Chemistry / Nucleotide Base: A heterocyclic nitrogen-containing base that is a constituent of nucleotides. Examples are adenine, guanine, thymine, uracil, and cytosine. MORE


Science / Genetics / Oligonucleotide: A molecule usually composed of 25 or fewer nucleotides: used as a dna synthesis primer. MORE


Science / Biology / Polynucleotides: Long chains of nucleotides formed by chemical links between the sugar and phosphate groups. MORE

Single Nucleotide Polymorphism (SNP)

Science / Genetics / Single Nucleotide Polymorphism (SNP): Dna sequence variations that occur when a single nucleotide (a, t, c, or g) in the genome sequence is altered. MORE

Complementary Nucleotides

Science / Biology / Complementary Nucleotides: The bonding preferences of nucleotides, Adenine with Thymine, and Cytosine with Guanine. Also referred to as complementary base pairing. MORE