Regular
Mutations in
Initiation of cigarette
Metabolic
DNA
cigarette smoking
smoking/
nicotine
Uptake of
carcinogens
Persistent
activation attaches to miscoding
genes capable
Loss of
of causing
normal
cancer-
cancer and
growth
Cancer
causing
tumor-
addiction
chemical
control
mechanisms
suppressor
genes
Which statement best describes how cancer may result from cigarette smoke?
A. Carcinogens destroy cells and cancer cells take over.
B. Carcinogens are cancer cells that take over to make tumors once in the body.
C. Carcinogens transfer their DNA to cells, causing cells to replicate as cancer cells.
D. Carcinogens change the DNA so that it mutates, causing cells to replicate out of control.