Table of contents

1. Introduction to Anatomy & Physiology5h 43m
2. Cell Chemistry & Cell Components12h 36m
3. Energy & Cell Processes10h 6m
4. Tissues & Histology10h 3m
5. Integumentary System2h 20m
6. Bones & Skeletal Tissue2h 16m
7. The Skeletal System2h 35m
8. Joints2h 17m
9. Muscle Tissue2h 33m
10. Muscles1h 11m
11. Nervous Tissue and Nervous System1h 35m
12. The Central Nervous System1h 6m
- Introduction to the Central Nervous System
  18m
- The Cerebrum
  48m
13. The Peripheral Nervous System1h 26m
14. The Autonomic Nervous System1h 38m
15. The Special Senses2h 41m
16. The Endocrine System2h 48m
17. The Blood3h 22m
18. The Heart2h 42m
19. The Blood Vessels3h 35m
20. The Lymphatic System3h 16m
21. The Immune System14h 37m
22. The Respiratory System3h 20m
23. The Digestive System2h 5m
24. Metabolism and Nutrition4h 0m
25. The Urinary System2h 39m
26. Fluid and Electrolyte Balance, Acid Base Balance37m
27. The Reproductive System2h 5m
28. Human Development1h 21m
29. Heredity3h 32m

3. Energy & Cell Processes

Introduction to DNA Replication

Anatomy & Physiology

3. Energy & Cell Processes

Introduction to DNA Replication

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Multiple Choice

Which of the following attributes of DNA is most crucial to its accurate duplication?

Its helical nature and hydrogen bonding

Its phosphodiester linkages and complementary strands

Its deoxyribose sugar and phosphate groups

Its specific sequence of bases

Its specific base pairing through hydrogen bonds

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Verified step by step guidance

Understand the structure of DNA: DNA is composed of two strands forming a double helix, with each strand consisting of a sugar-phosphate backbone and nitrogenous bases.

Recognize the role of base pairing: The nitrogenous bases on each strand pair specifically through hydrogen bonds, with adenine (A) pairing with thymine (T) and cytosine (C) pairing with guanine (G).

Identify the importance of complementary base pairing: This specific pairing ensures that each strand can serve as a template for the creation of a new complementary strand during DNA replication.

Consider the role of hydrogen bonds: Hydrogen bonds between the bases are crucial for the stability of the DNA structure and for the accurate pairing during replication.

Conclude that specific base pairing is essential: The specificity of base pairing through hydrogen bonds is the most crucial attribute for accurate DNA duplication, as it ensures that the genetic information is precisely copied.