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2.5
Changes to a Cell’s DNA
12
Biology
9th Grade
04/14/2013

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Term
Mutations
Definition
A change in the DNA, or the genetic code of a cell
e.g. cystic fibrosis (CF),diabetes
Term
diabetes
Definition
the cells that produce insulin have either stopped producing it or produce insulin that doesn’t work.
Term
Cancer
Definition
a disease in which cells divide very rapidly and uncontrollably.
Term
Benign tumours
Definition
masses of cells that grow but stay in one place and usually do not interfere with the normal functioning of the surrounding tissue or organ
Term
Malignant tumours
Definition
invade the surrounding tissues and interfere with the normal functions of the tissues and organs.
Term
metastasis
Definition
The spread of cancer cells away from their original location
Term
carcinogen
Definition
Any substance that can cause cancer
asbestos, certain pesticides, X-rays, some viruses, and many of the chemicals found in tobacco.
Term
Treating Cancer
Definition
Surgery, Radiation, Chemotherapy
Term
Surgery
Definition
can remove tumours before the cells metastasize
Term
Radiation
Definition
can be used to kill cancer cells by disrupting cell division in the rapidly dividing cancer cells.
Term
Chemotherapy
Definition
involves using drugs to stop the cancer cells from dividing.
Term
side effects
Definition
radiation burns, hair loss, nausea, and vomiting.
chemotherapy and radiation also kill some fast-growing healthy cells.
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