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What is a characteristic of cancer cells?
What is a characteristic of cancer cells?
- They respond normally to the body's control mechanism
- They undergo apoptosis when they stop dividing
- They have a limited number of divisions before stopping
- They divide excessively and invade other tissues (correct)
What happens to normal mammalian cells growing in culture?
What happens to normal mammalian cells growing in culture?
- They only divide 20-50 times before they stop dividing (correct)
- They exhibit contact inhibition
- They respond normally to external growth factors
- They divide indefinitely if given a continual supply of nutrients
What is a distinguishing feature of cancer cells in culture?
What is a distinguishing feature of cancer cells in culture?
- They respond normally to the body's control mechanism
- They do not exhibit contact inhibition (correct)
- They divide a limited number of times
- They stop growing when the petri dish is covered
What is a consequence of cancer cells not responding normally to the body's control mechanism?
What is a consequence of cancer cells not responding normally to the body's control mechanism?
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What is a distinguishing characteristic of cancer cells in terms of growth factor dependence?
What is a distinguishing characteristic of cancer cells in terms of growth factor dependence?
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