Cancer
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cancer definition
a disease in which cells grow and divide uncontrollably there are more than 100 types of cancer
mutation definition
any change in DNA of a gene
mutations in sex cells
can be passed to offspring
cancer cells can break off of the tumor and
enter the bloodstream
Cancer treatments include
radiation: less harmful for normal cells chemotherapy: the use of drugs to treat disease surgery: to remove the tumor if cancer cells have not spread
types of mutations
substitution - one base replaces another deletion - a base is removed additions - a base is added
Cancer is named for
the part of the body where it began
cancer begins when:
there is a mutation in DNA then a cell develops in an abnormal way and forms a tumor (mass of abnormal cells)