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Pyrimidine in Biological Dictionary

Uracil

... Uracil is a common and naturally occurring pyrimidine derivative. Originally discovered in 1900, it ... germ. It ... uracil n. ( Abbr. U ) A pyrimidine base, C 4 H 4 N 2 O 2 , that is an essential ... ... uracil (yʊr'əsĭl) , organic base of the pyrimidine family. ... uracil , U a ...

Thymine

... Thymine is also known as 5-methyluracil, a pyrimidine nucleobase. As the name suggests, thymine may ... Thymine - Uracil - Guanine - Cytosine - Purine - pyrimidine ... Encyclopedia article about thymine . ... ... thymine , organic base of the pyrimidine family. Thymine was the first ...

Pyrimidine

... pyrimidine is a heterocyclic aromatic organic compound ... with two other forms of diazine. ... in the pyrimidine biosynthesis. ... pyrimidine biosynthesis. v • d • e ... Nucleotide ...

Purine

... aromatic organic compound, consisting of a pyrimidine ring fused to an imidazole ring. Purines, ... of Purine Nucleotides. De novo Synthesis of pyrimidine Nucleotides ... The names of purine nucleosides end in -osine and the names of pyrimidine ... Low Purine Diet information by ...

Cytosine

... four main bases found in DNA and RNA. It is a pyrimidine derivative, with a heterocyclic aromatic ring ... bonds ... cytosine ( ) n. ( Abbr. C ) A pyrimidine base, C 4 H 5 N 3 O, that is the constituent of ... - Uracil - Guanine - Cytosine - Purine - pyrimidine ... Information about cytosine in the free ...

Transversion

... biology, transversion refers to the substitution of a purine for a pyrimidine or vice versa . It can only be reverted by a spontaneous reversion. ... A point mutation in which a purine is replaced by a pyrimidine, or a pyrimidine ... In molecular biology, transversion refers to the ... Bargain ...

Guanine

... Nucleobases: Adenine - Thymine - Uracil - Guanine - Cytosine - Purine - pyrimidine ... Compare Cheap Prices for Guanine at NexTag.com. Find Great ... Adenine, Guanine and Hypoxanthine (examples of purine ... Guanine :a pyrimidine base ... addition to adenine and guanine , a group of chemical ... ...

RNA

... help for kids. Information about RNA in the free online English dictionary and encyclopedia. ... RNA also differs from DNA in having the pyrimidine base uracil instead of ... RNA's sister Web sites. ReligionWriters.com. ReligionLink.com. ReligionHeadlines.org ... Why join RNA ? How to ...

Ribonucleotides

... A ribonucleotide is a nucleotide in which a purine or pyrimidine base is linked to a ribose molecule. The base may be adenine (A), guanine (G), cytosine (C), or uracil (U). Note that thymine (T), ...

Nitrogenous base

... compound that owes its property as a base to the lone pair of electrons of a nitrogen atom. Notable nitrogenous bases include purine bases. pyrimidine and purine bases include the nucleobases : principally adenine, guanine, thymine, cytosine, and uracil. Adenine and Thymine/Guanine and Cytosine ...

Deoxyribonucleotide

... of thymine and 5-hydroxymethylcytosine ... GO:0009265 : 2'- deoxyribonucleotide biosynthetic process [95 gene products] ... GO:0009219 : pyrimidine deoxyribonucleotide metabolic process [37 gene products] ... DNA is made up of many deoxyribonucleotide subunits. ... The sugar present in ...

Deoxyribonuclease

... is an enzyme coded by the human gene DNASE1. DNase I is a nuclease that cleaves DNA preferentially at phosphodiester linkages adjacent to a pyrimidine nucleotide, yielding 5'-phosphate terminated polynucleotides with a free hydroxyl group ... deoxyribonuclease n. DNase. ... ...

Base sequence

... of the atomic-level structure of the sequenced molecule. base sequence ( ′bās ′sēkwəns ) ( genetics ) The specific order of purine and pyrimidine bases in a polynucleotide such as deoxyribonucleic acid or sequence ( ) n. A following of one thing after another; succession. ... dna ...

AP site

... An AP site , also known as an abasic site , is a location in DNA that has neither a purine nor pyrimidine base, usually due to DNA damage. Apurinic/apyrimidinic ( AP ) endonuclease is an enzyme that is involved in the DNA base excision repair ...

Adenine

... catabolism differs among skeletal muscle ... Purine bases are Adenine , Guanine and Hypoxanthine (examples of purine ... Adenine : a pyrimidine base ... In addition to adenine and guanine, a group of ... ...
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