The document discusses the key differences between nucleic acids RNA and DNA. It notes that RNA and DNA are made up of nucleotides, which consist of a nitrogenous base, a pentose sugar, and a phosphate group. The main differences are that RNA contains the sugar ribose and the base uracil, while DNA contains the sugar deoxyribose and the base thymine. DNA forms a double helix structure.

1. 2
(deoxyribonucleic acid, DNA ) DNA
(ribonucleic acid
,RNA)
RNA DNA RNA
Nucleic acid 2
- Ribonucleic acid (RNA)
- Deoxyribonucleic acid (DNA)
DNA

2. RNA DNA
DNA RNA
RNA D-Ribose 2-Deoxyribose
DNA

3. 2
(deoxyribonucleicacid, DNA ) ribonucleic acid , RNA) DNA RNA
3 nitrogenous base) 5
(

4. • Nucleoside
• Nucleotide
• nucleotide
(heterocyclic amine )
2 pyrimidine) purine)

5. ribonucleic acid: RNA)
deoxyribonucleicacid: DNA)
(pyrimidine) cytosine - C)
(uracil - U) thymine - T) purine)
adenine - A) guanine - G)

6. 4 A, G, T C
A, G, U C
(Monoester linkage)
Diester linkage) ester-anhydride linkage)

7. , ,
β-N-glycosidic linkage) 1 ( 1/)
1 9
1
1 1 9
5