Exam (elaborations)
MI 3.1.3 QUESTIONS AND ANSWERS 2024
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Exam of 1 pages for the course cancer at cancer (MI 3.1.3)
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MI 3.1.3cancer? - answer abnormal uncontrolled growth of cells of any organ of the body
What’s the difference between normal cells and cancer cells? - answer Cancer cells:
uncontrolled growth, disorganized, multilayered, abnormal nuclei, does not undergo
apoptosis
Normal cells: controlled growth, one organized layer, normal nuclei, undergoes
apoptosis
How does cancer spread? - answer by metastasis
How does cancer spread or metastasize? - answer They can break away from the
original tumor and enter the bloodstream or lymph system, which can carry them to
another part of the body.
mutations that cause proto-oncogenes to become oncogenes? - answer1- a mutation in
the proto-oncogene that encodes for a protein with abnormal activity
2- over expression of proto-oncogenes that aren't repressed when necessary
3- translocation which results in hybrid gene with abornmal function
How does p53 prevent cancer cells from forming? - answer-regulates the cell cycle
-functions as a tumor suppressor gene
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