Table of contents

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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

Cancer

Anatomy & Physiology

3. Energy & Cell Processes

Cancer

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Multiple Choice

What gene has been called the "guardian angel of the genome"?

The p21 gene

The BRCA1 gene

The ras gene

The myoD gene

The p53 gene

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Verified step by step guidance

Begin by understanding the role of the p53 gene in the human body. The p53 gene is crucial for regulating the cell cycle and acts as a tumor suppressor, preventing cancer formation.

Recognize that the p53 gene is often referred to as the 'guardian of the genome' because it helps maintain genomic stability by preventing mutations.

Learn about how the p53 gene functions. It can activate DNA repair proteins when DNA has sustained damage, and it can also initiate apoptosis if the DNA damage is irreparable.

Understand the significance of the p53 gene in cancer biology. Mutations in the p53 gene are found in many types of cancer, highlighting its importance in protecting against cancerous growth.

Compare the p53 gene with other genes mentioned in the problem, such as BRCA1, ras, and myoD, to understand why p53 is uniquely referred to as the 'guardian angel of the genome'.