cytosine

cytosine

 [si´to-sēn]

a pyrimidine base found in nucleic acids.

cytosine arabinoside cytarabine.

Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

cy·to·sine (Cyt),

(sī'tō-sēn),

A pyrimidine found in nucleic acids.

Farlex Partner Medical Dictionary © Farlex 2012

cytosine

(sī′tə-sēn′)

n. Abbr. C

A pyrimidine base, C₄H₅N₃O, that is the constituent of DNA and RNA involved in base-pairing with guanine.

The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved.

cy·to·sine

(Cyt) (sī'tō-sēn)

A pyrimidine found in nucleic acids.

Medical Dictionary for the Health Professions and Nursing © Farlex 2012

cytosine

A pyrimidine base, one of those forming the genetic code of DNA and RNA.

Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005

Fig. 128 Cytosine . Molecular structure.

cytosine (C)

one of four types of nitrogenous bases found in DNA, having the single-ring structure of a class known as PYRIMIDINES. Cytosine forms part of a DNA unit called a NUCLEOTIDE and always forms complementary pairs with a DNA purine base called a GUANINE. Cytosine also occurs in RNA molecules.

Collins Dictionary of Biology, 3rd ed. © W. G. Hale, V. A. Saunders, J. P. Margham 2005