Ключевые слова: acid, atomic, atoms, carbon, chemical, chemistry, composition, compound, deoxyribonucleic, deoxyribose, deoxythymidine, dna, drawing, dttp, flat, formula, hydrogen, icon, line, molecular, molecule, monophospate, nitrogen, oxygen, phosphate, phosphorus, pyrimidine, ribose, riboside, skeletal, structure, thymidin, thymidine, thymin, thymine, triphosphate, ttp,