7. Mesothelioma is a rare cancer whose main risk factor is exposure to asbestos. Asbestos areneedle-like fibers that are easily inhaled into the lungs. When the needle-like projectionspenetrate the lining of the lungs, surrounding cells are damaged. Over time, malignant tumorsform, resulting in mesothelioma. How do the cells involved in mesothelioma differ fromnoncancerous cells?A. Mesothelioma cells assort independently while noncancerous cells are highly regulated.B. Damaged noncancerous cells will die whereas damaged mesothelioma cells willcontinue to divide.C. Mesothelioma cells show anchorage dependence while noncancerous cells do notD. Mesothelioma cells undergo twice as many checkpoints as noncancerous cells.

Answered: A. Mesothelioma cells assort…

Biology: The Dynamic Science (MindTap Course List)

4th Edition

ISBN:9781305389892

Author:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Publisher:Peter J. Russell, Paul E. Hertz, Beverly McMillan

Chapter16: Regulation Of Gene Expression

Section: Chapter Questions

Problem 9TYK

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7. Mesothelioma is a rare cancer whose main risk factor is exposure to asbestos. Asbestos are
needle-like fibers that are easily inhaled into the lungs. When the needle-like projections
penetrate the lining of the lungs, surrounding cells are damaged. Over time, malignant tumors
form, resulting in mesothelioma. How do the cells involved in mesothelioma differ from
noncancerous cells?
A. Mesothelioma cells assort independently while noncancerous cells are highly regulated.
B. Damaged noncancerous cells will die whereas damaged mesothelioma cells will
continue to divide.
C. Mesothelioma cells show anchorage dependence while noncancerous cells do not
D. Mesothelioma cells undergo twice as many checkpoints as noncancerous cells.

Expert Solution

Step 1

Pathogenesis of Mesothelioma: - Whenever needle shaped crystals are inhaled in lungs, some cells undergo changes to become mesothelioma cells. These cells exhibit the phenomenon of anchorage dependence. This means that the cells exhibit rapid growth when a solid anchoring surface is provided. In this case, this solid surface is provided by Asbestos particles.

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