uracil nucleobase molecule present ribonucleic acid rna atoms are represented spheres with conventional color coding | 
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| navigate by keyword : uracil nucleobase base uridine rna ribonucleic acid pyrimidine fluorouracil 5fu carbon hydrogen oxygen nitrogen molecule atoms atomic model molecular compound composition chemical chemistry bond structure formula		 | 
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| Uracil (U) nucleobase molecule. Present in ribonucleic acid (RNA). Atoms are represented as spheres with conventional color coding: hydrogen (white), carbon (grey), oxygen (red), nitrogen (blue | 
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