As humans age, the rate of cell division _____, which is intended to _______. Select one: a. increases, decrease the risk of cancer b. Decreases, decrease the risk of cancer c. Increases, increase stem cell division d. Decreases, increase stem cell division
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- Which of the following traits are common to many cancer cells (more than one answer may be correct)A. Uncontrolled growth and divisionB. Chromosomes abnormalitiesC. Absence of a cytoskeletonD. Decreased adhesion to other cellsEmbryonic stem cells have the potential to do all of the following except _____. a be rejected by a recipient's immune system b differentiate into almost any type of cell in the body c only able to grow into a similar type of cell d repair cells damaged by injury or diseaseCancer cells can be characterized as “generic” cells thatperform no specialized body function. Thus cancer cellslack ________.a. differentiationb. reproductionc. responsivenessd. both reproduction and responsiveness
- Cancer cells are distinguished from other normal cells by (select all that apply!): a. having abnormal nuclei. b. inducing angiogenesis. ☐ c. dividing uncontrollably. d. having mutations in their tumor-suppressor genes.Cells can become cancerous for many reasons. Regardless of how they become cancerous, the same general pattern is followed. Put the steps of cancer development in order from first to last. 1. A cell begins to grow and divide uncontrollably.2. The cell metastasizes and moves through the bloodstream, spreading throughout the body.3. Part of the tumor breaks off and is now malignant.4. The benign tumor is confined to one place.5. A small mass forms, called a tumor.Which of the following would improve an individual's ability to avoid cancer while aging?: a. decreases DNA repair accuracy during mitosisb. makes him smaller (e.g., fewer total cells)c. Increase the rate of mitosisd. increases his number of copies of p53e. all of the abovef. none of the above
- _____ are characteristic of cancer. a. Malignant cells b. Neoplasms c. TumorsCancer can arise spontaneously, but it can also be induced as a result of environmental factors such as sun exposure, infections, and tobacco smoking. If you were asked to help allocate resources to cancer research, what emphasis would you place on research to find cancer cures, compared to that placed on education about cancer prevention?Which statement best describes the relationship with cancer and aging? Our risk of nearly every type of cancer increases with age. O Our risk of nearly every type of cancer decreases with age. Our risk of nearly every type of cancer stays the same with age.
- In your own words, explain each of the hallmarks of cancer. (immortality, produce go signals, override stop signals, resist cell death, angiogenesis and how it relates to metastasis.Shown here are two HeLa cancer cells that are just completing cytokinesis. Explain how the cell division of cancer cellslike these is misregulated. Identify genetic and other changesthat might have caused these cells to escape normal cell cycleregulationT/F: Only a small fraction of cancer cells successfully metastasize. why is it false or why is it true.