Bases Nitrogenadas
by Hugo Fabian Sandoval Perez
1. Isoaloxazinas
1.1. Flavina
1.1.1. Riboflavina
2. Purinas
2.1. Adenina
2.1.1. Adenosina
2.2. Guanina
2.2.1. Guanosina
3. Pirimidinas
3.1. Timina
3.1.1. Timidina
3.2. Citosina
3.2.1. Citidina
3.3. Uracilo
3.3.1. Uridina