nucleotide

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nucleotide

nucleotide , organic substance that serves as a monomer in forming nucleic acids . Nucleotides consist of either a purine or a pyrimidine base, a ribose or deoxyribose, and a phosphate group. Adenosine triphosphate serves as the principle energy carrier for the cell's reactions. The most important nucleotides are those derived from the bases adenine , guanine , cytosine , thymine , and uracil .

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nucleotide

A Dictionary of Zoology | 1999 | | Â© A Dictionary of Zoology 1999, originally published by Oxford University Press 1999. (Hide copyright information) Copyright

nucleotide A nucleoside that is bound to a phosphate group through one of the hydroxyl groups of the sugar. It is the unit structure of nucleic acids.

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MICHAEL ALLABY. "nucleotide." A Dictionary of Zoology. 1999. Encyclopedia.com. 28 Nov. 2009 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "nucleotide." A Dictionary of Zoology. 1999. Encyclopedia.com. (November 28, 2009). http://www.encyclopedia.com/doc/1O8-nucleotide.html

MICHAEL ALLABY. "nucleotide." A Dictionary of Zoology. 1999. Retrieved November 28, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O8-nucleotide.html

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nucleotide

A Dictionary of Ecology | 2004 | | Â© A Dictionary of Ecology 2004, originally published by Oxford University Press 2004. (Hide copyright information) Copyright

nucleotide The basic monomer that makes up a DNA molecule, which is composed of a nitrogen base, a pentose sugar, and a phosphate group.

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MICHAEL ALLABY. "nucleotide." A Dictionary of Ecology. 2004. Encyclopedia.com. 28 Nov. 2009 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "nucleotide." A Dictionary of Ecology. 2004. Encyclopedia.com. (November 28, 2009). http://www.encyclopedia.com/doc/1O14-nucleotide.html

MICHAEL ALLABY. "nucleotide." A Dictionary of Ecology. 2004. Retrieved November 28, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O14-nucleotide.html

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