Characteristics of the promotion phase of cancer include all of the following EXCEPT:
1.this phase takes place over a span of 5 to 7 years.
2.large numbers of abnormal cells are produced during this phase.
3.cells with altered DNA divide during this phase.
4.unless corrected, it will lead to the progression phase.
Question 2
Diet accounts for approximately what percentage of cancer risk?
1.20
2.30
3.40
4.50