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

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Multiple Choice

How is RNA different from DNA in terms of structure and function?

RNA is more stable than DNA under alkaline conditions.

RNA contains thymine, while DNA contains uracil.

RNA contains ribose sugar, while DNA contains deoxyribose sugar.

RNA is double-stranded, while DNA is single-stranded.

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Identify the sugar component in both RNA and DNA. RNA contains ribose sugar, which has a hydroxyl group (-OH) attached to the 2' carbon of the sugar ring, while DNA contains deoxyribose sugar, which lacks this hydroxyl group at the 2' position, having only a hydrogen atom instead.

Examine the nitrogenous bases present in RNA and DNA. RNA contains uracil as one of its bases, whereas DNA contains thymine. This is a key difference in the nucleotide composition of these nucleic acids.

Consider the structural form of RNA and DNA. RNA is typically single-stranded, allowing it to fold into various shapes necessary for its functions, whereas DNA is usually double-stranded, forming the well-known double helix structure.

Evaluate the stability of RNA and DNA under different conditions. RNA is less stable than DNA under alkaline conditions due to the presence of the 2' hydroxyl group in ribose, which can participate in hydrolysis reactions.

Summarize the functional differences: RNA is primarily involved in protein synthesis and regulation of gene expression, acting as a messenger, whereas DNA serves as the long-term storage of genetic information.