Table of contents

1. A Review of General Chemistry5h 5m
2. Molecular Representations1h 14m
3. Acids and Bases2h 46m
4. Alkanes and Cycloalkanes4h 17m
5. Chirality3h 39m
6. Thermodynamics and Kinetics1h 22m
7. Substitution Reactions1h 48m
8. Elimination Reactions2h 30m
9. Alkenes and Alkynes2h 9m
10. Addition Reactions3h 19m
11. Radical Reactions1h 58m
12. Alcohols, Ethers, Epoxides and Thiols2h 42m
13. Alcohols and Carbonyl Compounds2h 17m
14. Synthetic Techniques1h 26m
15. Analytical Techniques:IR, NMR, Mass Spect7h 3m
16. Conjugated Systems6h 13m
17. Ultraviolet Spectroscopy51m
18. Aromaticity2h 34m
19. Reactions of Aromatics: EAS and Beyond5h 1m
20. Phenols55m
21. Aldehydes and Ketones: Nucleophilic Addition4h 56m
22. Carboxylic Acid Derivatives: NAS2h 51m
23. The Chemistry of Thioesters, Phophate Ester and Phosphate Anhydrides1h 10m
24. Enolate Chemistry: Reactions at the Alpha-Carbon1h 53m
25. Condensation Chemistry2h 9m
26. Amines1h 43m
27. Heterocycles2h 0m
28. Carbohydrates5h 53m
29. Amino Acids4h 20m
30. Peptides and Proteins2h 42m
31. Catalysis in Organic Reactions1h 30m
32. Lipids 2h 50m
33. The Organic Chemistry of Metabolic Pathways2h 52m
34. Nucleic Acids1h 32m
35. Transition Metals6h 14m
36. Synthetic Polymers1h 49m

34. Nucleic Acids

Intro to Nucleic Acids

Organic Chemistry

34. Nucleic Acids

Intro to Nucleic Acids

Previous problemNext problem

Struggling with Organic Chemistry?

Join thousands of students who trust us to help them ace their exams!Watch the first video

Multiple Choice

The backbone of a DNA molecule is made of which two components?

Nitrogenous bases and deoxyribose sugar

Ribose sugar and phosphate groups

Deoxyribose sugar and phosphate groups

Amino acids and phosphate groups

Previous problemNext problem

Verified step by step guidance

Identify the components that form the backbone of a DNA molecule. The backbone is the structural framework that supports the DNA structure.

Recall that DNA stands for deoxyribonucleic acid, which gives a hint about one of the components involved in the backbone.

Understand that the backbone of DNA is composed of repeating units of deoxyribose sugar and phosphate groups. These two components alternate to form the structural framework.

The deoxyribose sugar is a five-carbon sugar molecule that is part of the nucleotide structure in DNA. It is called 'deoxy' because it lacks an oxygen atom compared to ribose sugar found in RNA.

Phosphate groups link the deoxyribose sugars together through phosphodiester bonds, creating a continuous sugar-phosphate backbone that supports the nitrogenous bases, which are not part of the backbone itself.