(thing) by jafuser Sat Sep 23 2000 at 5:35:51
The RNA nucleotide uracil is complementary to the DNA nucleotide thymine.

The structural formula for uracil is: 

     H        H
      \      /
       C -- N
      //     \
H -- C        C == 0
      \      /
       C -- N
      //     \ 
     O        H
See also: adenine, guanine, thymine, and cytosine.

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