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

5. Chirality

Chirality

Organic Chemistry

5. Chirality

Chirality

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Multiple Choice

Which of the following best explains the phenomenon where a red flower and a white flower produce pink offspring?

Complete dominance

Codominance

Incomplete dominance

Epistasis

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Verified step by step guidance

Understand the concept of incomplete dominance: Incomplete dominance occurs when the phenotype of the heterozygote is intermediate between the phenotypes of the homozygotes. This means that neither allele is completely dominant over the other, resulting in a blend of traits.

Consider the example of flower color: In the case of a red flower and a white flower producing pink offspring, neither the red nor the white allele is completely dominant. Instead, the alleles blend to produce a new phenotype, which is pink.

Compare incomplete dominance with complete dominance: In complete dominance, one allele completely masks the effect of the other allele in the heterozygote. This would result in offspring that display only the dominant trait, not a blend.

Differentiate incomplete dominance from codominance: Codominance occurs when both alleles in a heterozygote are fully expressed, resulting in offspring that display both traits simultaneously, rather than a blend.

Recognize that epistasis is a different concept: Epistasis involves interactions between different genes, where one gene can mask or modify the expression of another gene. This is not the mechanism at play in the blending of flower colors.