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

Base Pairing

Organic Chemistry

34. Nucleic Acids

Base Pairing

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Multiple Choice

In DNA base pairing, which nucleotide pairs with thymine (T) and which pairs with cytosine (C)?

Adenine (A) pairs with T and Guanine (G) pairs with C

Cytosine (C) pairs with T and Thymine (T) pairs with C

Guanine (G) pairs with T and Adenine (A) pairs with C

Thymine (T) pairs with T and Cytosine (C) pairs with C

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Verified step by step guidance

Understand the concept of DNA base pairing: DNA is composed of four types of nucleotides, which pair specifically with each other to form the double helix structure.

Recall the base pairing rules: In DNA, adenine (A) pairs with thymine (T), and cytosine (C) pairs with guanine (G). These pairings are due to hydrogen bonding and the complementary shapes of the bases.

Analyze the given options: Compare each option with the known base pairing rules to determine which one correctly describes the pairings.

Identify the correct pairings: Based on the base pairing rules, adenine (A) pairs with thymine (T), and guanine (G) pairs with cytosine (C).

Select the correct answer: Choose the option that matches the correct base pairing rules, which is 'Adenine (A) pairs with T and Guanine (G) pairs with C'.