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V/ 



Information Storage and Neural Control 

 OH K .OH 



HjC O— PO3H2 



HjC O PO3H2 



Ribose Phosphate Deoxyribose Phosphate 



Fig. 3. Chemical formulas for tlie pentose phosphates found in DNA and RNA. 



N^C — NH. 



N=C— OH 



N — C — NH 



^CH 



N— C— N 



>" 



N: 



■NH, 



HC C — N^ HjN-C C— N^ 0=C 



CH 



H— N CH 



Adenine (A) 



Guanine (G) 



Cytosine (C) 



N==C — OH 

 0=C CH 

 H N CH 



N:=:C OH 



0=C C CH, 



H N — CH 



N: 



-NH. 



o=c 



■CH, 



H— N CH 



Uracil (U) 



Thymine (T) Methyl Cytosine (MC) 



Fig. 4. Chemical formulas for the purine and pyrimidine bases found in DNA 



and RNA. 



