EXAM 2 with correct answers
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Oncogenes - CORRECT ANSWERS ✔✔cancer causing
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genes, promote uncontrolled growth of cells
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Proto-oncogenes - CORRECT ANSWERS ✔✔promote |\ |\ |\ |\ |\
normal cell growth factor and division
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If proto-oncogenes are mutated the become - - CORRECT
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ANSWERS ✔✔Oncogenes |\
Tumor Supressor Genes (TSGs) are - CORRECT ANSWERS
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✔✔Antioncogenes
antioncogenes - CORRECT ANSWERS ✔✔inhibit tumor |\ |\ |\ |\ |\ |\
progression & prevent mutations |\ |\ |\
Cancer develops with increase in - and decrease in - -
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CORRECT ANSWERS ✔✔oncogenes, tumor suppressor
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genes
,What are the 2 main types of Tumor Suppressor Genes? -
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CORRECT ANSWERS ✔✔Gatekeepers & Caretakers
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tumor suppressor genes - CORRECT ANSWERS ✔✔encode
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proteins that inhibit growth, prevent and repair mutations
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but if mutated will increase cancer risk
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Gatekeeper - CORRECT ANSWERS ✔✔regulate cell |\ |\ |\ |\ |\ |\
proliferation, cell type specific, normally prevent |\ |\ |\ |\ |\ |\
uncontrolled growth and potential progression of cancer |\ |\ |\ |\ |\ |\
Caretaker - CORRECT ANSWERS ✔✔suppress gene
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mutations, repair DNA, if not functioning correctly|\ |\ |\ |\ |\ |\ |\
mutation can occur |\ |\
How does chronic inflammation cause cancer? - CORRECT
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ANSWERS ✔✔Inflammation increases free radicals and
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reactive oxygen species which promote mutation
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interfere with insulin signaling leading to insulin
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resistance in stress, obesity, and Type 2 Diabetes. -
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CORRECT ANSWERS ✔✔Pro-inflammatory cytokines
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, TP53 gene - CORRECT ANSWERS ✔✔tumor suppressor
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gene, if lost due to mutation cells escape apoptosis and
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can divide indefinitely increasing risk of cancer
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tumor necrosis factor is _ cytokine - CORRECT ANSWERS
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✔✔pro-inflammatory, may be related to carcinogenesis |\ |\ |\ |\ |\
4 functions of TNF - CORRECT ANSWERS ✔✔1)cell survival
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2)cell proliferation |\
3) cell differentiation
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4)cell death |\
CA therapy in relation to TNF - CORRECT ANSWERS
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✔✔Modulation of TNF/receptors |\ |\
tumor markers - CORRECT ANSWERS ✔✔not used to
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diagnose, but can be useful in surveillance of cancers or
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after cancer treatments, elevated in some cancers
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tumor markers are produced by both - CORRECT
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ANSWERS ✔✔benign & malignant cells, increased levels
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seen in cancerous/noncancerous tumors
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