(thing) by /dev/null Mon May 22 2000 at 0:06:30

One of the nitrogenous bases in DNA and RNA. It is the complement of guanine.

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(thing) by jafuser Sat Sep 23 2000 at 4:38:05

structural formula of cytosine:

            H
           /
     H -- N        H
           \      /
            C -- C
           //     \\
          N        C -- H
           \      /
            C -- N
           //      
          O

See also: adenine, thymine, guanine, and uracil.

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