Questions and Answers
What are some factors that can lead to genetic changes associated with cancer?
Why is there a higher risk of cancer as people age?
How does cancer typically develop within a tumor?
Which of the following is NOT a cause of genetic changes that can lead to cancer?
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Which statement about cancer is correct?
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Study Notes
Cancer as a Genetic Disease
- Cancer originates from genetic alterations impacting cell function, especially growth and division.
- Genetic changes leading to cancer can result from:
- Errors occurring during cell division
- DNA damage from environmental factors like tobacco smoke and ultraviolet (UV) radiation
- Hereditary factors passed from parents to offspring
Body's Defense Mechanism
- The body typically eliminates cells with damaged DNA to prevent cancer development.
- This protective ability declines with age, increasing cancer risk in older individuals.
Unique Genetic Composition
- Each cancer case possesses a distinct set of genetic alterations.
- As cancer advances, further genetic changes develop.
- Within a single tumor, variability exists; different cells can exhibit different genetic alterations.
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Description
This quiz explores the genetic basis of cancer, including how mutations in genes can lead to uncontrolled cell growth. It also discusses environmental factors and inherited predispositions that contribute to cancer development. Test your knowledge on the key elements of cancer genetics and its implications.
