Gene expression and cancer Quiz
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5 questions, one answer each
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1. Which feature is typical of a malignant tumour?
- A. A surrounding capsule
- B. Slow growth
- C. Cells that metastasise
- D. Cells that look normal
2. A mutation makes a protein that stimulates division active all the time. The gene is now a(n)
- A. tumour suppressor gene
- B. oncogene
- C. proto-oncogene
- D. promoter
3. Increased methylation of a tumour suppressor gene
- A. stops its transcription
- B. increases its transcription
- C. changes its base sequence
- D. makes its protein permanent
4. How can high oestrogen increase breast cancer risk?
- A. It destroys DNA directly
- B. It stops all cell division
- C. It makes cells specialise
- D. It stimulates cell division, giving more chances of mutation
5. Cancer is 6 times more common in people with allele X than without it. What is the best conclusion?
- A. Allele X always causes cancer
- B. Allele X is linked with a higher risk
- C. Environment has no effect
- D. Allele X is an oncogene