Multiple Choice
Which of the following nitrogenous bases is classified as a purine?
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Table of contents
- 1. A Review of General Chemistry5h 6m
- Summary23m
- Intro to Organic Chemistry4m
- Atomic Structure17m
- Wave Function9m
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- Formal Charges6m
- Skeletal Structure14m
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- 2. Molecular Representations1h 14m
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- 23. The Chemistry of Thioesters, Phophate Ester and Phosphate Anhydrides1h 10m
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- Haloform Reaction8m
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- Overview of Alpha-Alkylations and Acylations5m
- Enolate Alkylation and Acylation12m
- Enamine Alkylation and Acylation16m
- Beta-Dicarbonyl Synthesis Pathway7m
- Acetoacetic Ester Synthesis13m
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- 25. Condensation Chemistry2h 9m
- 26. Amines1h 43m
- 27. Heterocycles2h 0m
- Nomenclature of Heterocycles15m
- Acid-Base Properties of Nitrogen Heterocycles10m
- Reactions of Pyrrole, Furan, and Thiophene13m
- Directing Effects in Substituted Pyrroles, Furans, and Thiophenes16m
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- 28. Carbohydrates5h 53m
- Monosaccharide20m
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- Disaccharide30m
- Polysaccharide11m
- 29. Amino Acids4h 20m
- Proteins and Amino Acids19m
- L and D Amino Acids14m
- Polar Amino Acids14m
- Amino Acid Chart1h 18m
- Acid-Base Properties of Amino Acids33m
- Isoelectric Point14m
- Amino Acid Synthesis: HVZ Method12m
- Synthesis of Amino Acids: Acetamidomalonic Ester Synthesis16m
- Synthesis of Amino Acids: N-Phthalimidomalonic Ester Synthesis13m
- Synthesis of Amino Acids: Strecker Synthesis13m
- Reactions of Amino Acids: Esterification7m
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- Reactions of Amino Acids: Ninhydrin Test11m
- 30. Peptides and Proteins2h 42m
- Peptides12m
- Primary Protein Structure4m
- Secondary Protein Structure17m
- Tertiary Protein Structure11m
- Disulfide Bonds17m
- Quaternary Protein Structure10m
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- Intro to Peptide Sequencing2m
- Peptide Sequencing: Partial Hydrolysis25m
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- Merrifield Solid-Phase Peptide Synthesis18m
- 31. Catalysis in Organic Reactions1h 30m
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- Intro to Metabolism6m
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- Intro to Coenzymes3m
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- Anaerobic Respiration11m
- Catabolism of Fats: Glycerol Metabolism11m
- Intro to Citric Acid Cycle7m
- Structures of the Citric Acid Cycle19m
- The Citric Acid Cycle35m
- 34. Nucleic Acids1h 32m
- 35. Transition Metals6h 14m
- Electron Configuration of Elements45m
- Coordination Complexes20m
- Ligands24m
- Electron Counting10m
- The 18 and 16 Electron Rule13m
- Cross-Coupling General Reactions40m
- Heck Reaction40m
- Stille Reaction13m
- Suzuki Reaction25m
- Sonogashira Coupling Reaction17m
- Fukuyama Coupling Reaction15m
- Kumada Coupling Reaction13m
- Negishi Coupling Reaction16m
- Buchwald-Hartwig Amination Reaction19m
- Eglinton Reaction17m
- Catalytic Allylic Alkylation18m
- Alkene Metathesis23m
- 36. Synthetic Polymers1h 49m
- Introduction to Polymers6m
- Chain-Growth Polymers10m
- Radical Polymerization15m
- Cationic Polymerization8m
- Anionic Polymerization8m
- Polymer Stereochemistry3m
- Ziegler-Natta Polymerization4m
- Copolymers6m
- Step-Growth Polymers11m
- Step-Growth Polymers: Urethane6m
- Step-Growth Polymers: Polyurethane Mechanism10m
- Step-Growth Polymers: Epoxy Resin8m
- Polymers Structure and Properties8m
34. Nucleic Acids
Nitrogenous Bases
Multiple Choice
Which nitrogenous bases in are complementary to each other?
A
Cytosine and Thymine
B
Guanine and Thymine
C
Adenine and Thymine
D
Adenine and Cytosine
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Verified step by step guidance1
Understand the structure of DNA: DNA is composed of two strands forming a double helix, with nitrogenous bases paired between the strands.
Identify the four nitrogenous bases in DNA: Adenine (A), Thymine (T), Cytosine (C), and Guanine (G).
Learn the base pairing rules: In DNA, bases pair specifically due to hydrogen bonding. Adenine pairs with Thymine, and Cytosine pairs with Guanine.
Apply the base pairing rules to the given options: Check each pair to see if they follow the established base pairing rules.
Recognize the correct complementary pairs: Adenine pairs with Thymine, and Cytosine pairs with Guanine, based on the base pairing rules.
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