
Concept explainers
To find:
The factors that cause cancer and the potential targets of these factors in the cancer cells and discuss how radiation acts as both cause and treatment for cancer.
Introduction:
The uncontrolled growth and division of cells is termed as Cancer. A proto oncogene is a normal gene which regulates the growth and division of normal cells. These proto-oncogenes can become oncogenes by undergoing mutation. Generally, these proto-oncogenes are responsible for carrying mitogenic signals and signal transduction. Upon activation due to increased gene expression or mutation, a proto-oncogene is converted into an oncogene or a tumor inducing agent which is carcinogenic in nature.

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Chapter 2 Solutions
Pearson eText Principles of Human Physiology -- Instant Access (Pearson+)
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