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- Characterize the differences between tumor cells and normal cells in terms of the following properties. In cancer cells, how might each of these properties contribute to tumor progression? a) contact inhibition b) autocrine stimulation c) apoptosis d) senescence due to telomere shortening e) genomic stability f) angiogenises g) metastasisWhat is the CDK of Mitotic checkpoint? a.)Present b.)AbsentWhich is true for cancer cells: 1) Cell death occurs after a determined number of cell divisions 2) Contact with other cells reduces chance of cell division 3) Cell division occurs in the presence of stop signals.
- What kind of daughter cells will result if the "Normal cell" above goes through mitosis? A) two normal cells B) two cancer cells C) two specialized cells D) one cancer cell and one normal cellSome cancer drugs stop cell division by stabilizing microtubules so they cannot come apart. Which step of the mitosis is disrupted? A) Telophase B) cytokinesis C) Anaphase D) MetaphaseWhich statement is true about a person's chromosomes? a) They are arranged in homologous groups of three. b) Their sister chromatids are joined at centrosomes. c) They are long chains of DNA. d) They are all identical. Please I need a surely answer and a quicker response
- Which of the following is true of tumor suppressor genes? Group of answer choices a) If this gene is overactive, it becomes an oncogene b) If one of the alleles is mutated, there is usually little effect. Two inactivating mutations are usually required for loss of function (recessive mutation). c) If one copy is lost, the gene no longer functions (dominant mutation) d) Tumor suppressors genes usually cause mitosis or cell growth e) Tumor suppressor genes decrease apoptosisCyclin B and Cdk1 make up MPF which is important to the regulation and initiation of mitosis. : a) True b) FalseWhich of the following is an inhibitor of apoptosis? Question 3 options: a) Caspase b) cytochrome c c) Bcl-2 family d) p53
- Which of the following is true with respect to cyclins and CDKs? A) CDKs promote progression of the cell cycle, cyclins function to inhibit progression of the cell cycle B) CDKs are the checkpoints in the cell cycle, and when bound to cyclins, they stop progression of the cell cycle C) CDKs will only work to promote progression of the cell cycle when complexed with their designated cyclins D) CDKs are rarely expressed during a cell's cycle, unless cyclins are present to act as transcription factors .YOU DON'T NEED TO EXPLAIN THESE QUESTIONS JUST PROVIDE ANSWER DNA separates during ____ of mitosis. a)Prophase b)Telophase c)Metaphase d)Interphase e)Anaphase 2. What separates during mitosis? a)Single DNA strands b)Cytoplasm c)Sister chromatids d)Telomeres e)Homologous chromosomes 3. Oncogenes are associated with cancer because they Oncogenes are associated with cancer because they (select one answer) Cause cells to initiate a death pathway Fail to put a “brake” on the cell cycle Push cells through the cell cycle Divert cells into G0 phase Slow down the cell cycleThe somatic stem cells are derived from source such as_________.a) Bone marrow, embryos, amniotic fluid and umbilical cord b) Embryos, bone, knee, foetus c) Bone marrow, fluid, umbilical cord, joint cells d) Embryo, foetus, umbilical cord, fluid.