nucleic acid

nucleic acid

1. nucleotides

   • phosphate
   • nucleosides
     • nitrogen base
       • Pyrimidine
         • heterocyclic ring (6 member) -- containing 4 C atoms and 2 N atoms
         • uracil
           • in RNA -- 1- dioxypyrimidine
         • cytocine
           • in both DNA & RNA -- oxy-4-aminopyrimidine
         • thymine
           • in DNA -- methyl uracil
       • Purine
         • 2 fused rings -- imidazole ring
         • adenine
           • in both DNA & RNA
         • guanine
           • in both DNA & RNA
     • sugar
       • pentose
         • ribose
           • 1.the nucleic acid is called Ribonucleic acid RNA 2.present mainly in the cytoplasm and also in nucleus
         • Deoxyribose
           • 1.the nucleic acid is called deoxyribonucleic acid DNA 2.present mainly in the nucleus

2. DNA

3. RNA