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Cancer cells spend less time in __________ than do normal cells.
interphase
What does apoptosis prevent?
can help to protect organisms from developing cancerous growths.
When does apoptosis occurs?
When cells are damaged beyond repair
Is the programmed cell death, for those cells that is not destined to survive:
Apoptosis
Why the risk of cancer increases with age?
Over time, there might be many changes in DNA.
Often, the damage that occurs in a cell is repaired by various repair systems. But if the repair system fail, cancer can result: True or False?
True
Give 2 examples of carcinogens
ultraviolet radiation from sun, x-rays, tobacco, viruses
Mention 2 causes of cancer
mutations or changes in the segments of DNA, carcinogens, inherit changes
What are carcinogens?
Substances and agents that are known to cause cancer.
Cancer only occurs in weak organisms: True or False?
False
What is cancer?
uncontrolled growth and division of cells.
Which substances combine together signal the start and the end of the cell cycle?
The combination of cyclin with CDK
What controls the cell cycle?
A mechanisms involving proteins & enzymes


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