Loose-leaf Version for What Is Life? A Guide to Biology 4E & LaunchPad for What is Life? A Guide to Biology 4E (Twelve Month Access)
4th Edition
ISBN: 9781319154639
Author: Jay Phelan
Publisher: W.H. Freeman & Co
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Chapter 8, Problem 5MC
Summary Introduction
Introduction:
Contact inhibition prevents a cell from dividing once it is surrounded by other cells.
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Which of the following statements are correct about tumors and metastasis (select all that apply)?
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Loss of basement membrane by tumor mass is strong predictor of metastasis potential
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The tendency of a primary tumor to metastasize is similar across different tissue types
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Chapter 8 Solutions
Loose-leaf Version for What Is Life? A Guide to Biology 4E & LaunchPad for What is Life? A Guide to Biology 4E (Twelve Month Access)
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Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- When cancer cells metastasize, they: a. b. ○ c. travel to distant and different body parts to begin new tumors. stay in their place of origin to destroy adjacent tissues. are not able to invade blood vessels.arrow_forwardWhich of the following is NOT an example of fail-safe mechanisms that prevent the irregular cell divisions characteristic of cancer? a.Shortening of telomeres b.Cell division limit c.Mutation in a tumor suppressor gene d.Triggered cell deatharrow_forwardWhich of the following steps are correct about multistep tumorigenesis (select all that apply)? A. Mutations in progenitor cells are more likely to develop a neoplastic state compared to mutations in stem cells B. Driver mutations give a cell clone a proliferative advanage C. The rate of mutation /genetic change is constant during tumor progression D. Nutrition/diet may effect rate of tumorigenesis E. All cells within a tumor are biologically equivalent and equally capable of high levels proliferationarrow_forward
- With regard to cancer cells, which of the following are true? A. Cancer cells are clonal, meaning that they are derived from many different cells that all underwent the same clonal mutation. Cells usually accumulate many mutations over time, and this results in cancerous growth. B. Almost all cancers are caused by oncogenic viruses. no Benign tumors are dangerous because they can easily invade surrounding tissue and spread to other locations in the body. DE. Cancer cells are unable to control their division.arrow_forwardTumor growth rate is dependent on which of the following factors? A. B. C. D. Quantity of actively dividing cells Type of malignancy Staging at time of diagnosis Mitotic phase of the cell cyclearrow_forwardWhich of the following must scientists understand in order to create effective cancer treatments? Select all that apply. a why cancer is difficult to treat b where cancer originated c how cancer cells multiply d how cancer cells growarrow_forward
- Which of the following accurately compares tumor suppressor genes and proto-oncogenes? A. Both tumor suppressor and proto-oncogenes prevent the spread of cancer by targeting and destroying existing cancer cells. B. A person who has both tumor suppressor and proto-oncogenes will always develop cancer. C. Proto-oncogenes code for growth factors, while tumor suppressor genes inhibit cell division of damaged cells. D. When a proto-oncogene mutates, it becomes a tumor suppressor gene.arrow_forwardA cell in this stage of cancer no longer makes the set of proteins that is was originally instructed to make but has not migrated into surrounding tissues; thus at this stage a tissue specific protein production profile could be used to identify a cancer. a. carcinoma, in situ b. dysplasia c. hyperplasia d. malignant tumorarrow_forwardWhich of the following are mechanisms by which cancer drugs work (select all that apply)? A. Inhibit activity of oncogene B. Promote apoptosis C. Promote terminal differentiation of cells D. Inhibit drug transporters E. Promote DNA damage.arrow_forward
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