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Questions and Answers
What are some factors that can lead to genetic changes associated with cancer?
What are some factors that can lead to genetic changes associated with cancer?
- Balanced nutrition
- Inadequate sleep patterns
- Errors in cell division (correct)
- Low levels of physical activity
Why is there a higher risk of cancer as people age?
Why is there a higher risk of cancer as people age?
- Older individuals have more genetic mutations from birth
- Environmental factors are more prevalent in older age
- Dietary choices are worse in older adults
- The body becomes less able to eliminate damaged DNA (correct)
How does cancer typically develop within a tumor?
How does cancer typically develop within a tumor?
- Different cells within the same tumor may have different genetic changes (correct)
- Tumors only grow due to environmental toxins
- Cancer cells divide at a constant rate across all tumors
- All cells in a tumor have identical genetic changes
Which of the following is NOT a cause of genetic changes that can lead to cancer?
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?
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.
