Neoplasia

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1. What is a proto-oncogene?

  • A normal gene that can undergo a mutation to become an oncogene
  • A gene which is inappropriately abnormally or excessively expressed in tumours and is responsible for their abnormal growth
  • A gene that protects a cell from one step on the path to cancer
  • A gene that is responsible for inducing apoptosis
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Other questions in this quiz

2. What does 'N' mean in the determination of the stage of a tumour?

  • The depth of invasion.
  • The degree of metastases.
  • The number of lymph nodes involved.
  • The nuclear size and pleomorphism.

3. Malignant neoplasms of epithelial cells are called _____?

  • Carcinomas
  • Sarcomas

4. Which of these host factors does not affect tumour growth?

  • The vascular supply to the tumour
  • Their diet
  • Their circulating hormone levels

5. Which of these is a factor in the growth of transformed, tumour cells?

  • Increased cohesion and being anchorage dependent
  • Early maturation
  • Loss of contact inhibition and colony formation
  • Increased serum growth factor requirment

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