Table 2.
Angle of View | Attribute | Nucleotides |
---|---|---|
(1) Ring structure | purine | A, G |
pyrimidine | C, U | |
(2) Functional group | amino | A, C |
keto | G, U | |
(3) Hydrogen bonding | stronger | C, G |
weaker | A, U |
See Local Features of Individual Nucleotides for further explanation.