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

1. A Review of General Chemistry

Intro to Organic Chemistry

Organic Chemistry

1. A Review of General Chemistry

Intro to Organic Chemistry

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Multiple Choice

Which type of mutation helped lead to the understanding that the genetic code is based on triplets?

Missense mutation

Frameshift mutation

Silent mutation

Point mutation

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Verified step by step guidance

Understand the concept of genetic code: The genetic code is a set of rules by which information encoded in genetic material (DNA or RNA sequences) is translated into proteins by living cells.

Learn about mutations: Mutations are changes in the DNA sequence that can affect how genes function. Different types of mutations include missense, silent, point, and frameshift mutations.

Explore frameshift mutations: Frameshift mutations occur when nucleotides are inserted or deleted from the DNA sequence, causing a shift in the reading frame of the genetic code. This can lead to significant changes in the protein produced.

Recognize the impact of frameshift mutations on the genetic code: Frameshift mutations disrupt the triplet reading frame, which is crucial for understanding that the genetic code is based on triplets. This type of mutation can alter the entire downstream sequence of amino acids.

Connect frameshift mutations to the discovery of the triplet nature of the genetic code: The study of frameshift mutations helped scientists realize that the genetic code is read in sets of three nucleotides (codons), as these mutations demonstrated the importance of maintaining the correct reading frame for proper protein synthesis.