PATHOLOGY MCQ
CELL DAMAGE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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to produce growth signals
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to code for proteins that inhibit, or slow, cell division
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to code for proteins that cause the cell to move faster through the cell cycle
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to code for proteins that attack cancer cells in the body
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Detailed explanation-1: -Tumor suppressor genes represent the opposite side of cell growth control, normally acting to inhibit cell proliferation and tumor development. In many tumors, these genes are lost or inactivated, thereby removing negative regulators of cell proliferation and contributing to the abnormal proliferation of tumor cells.
Detailed explanation-2: -Tumor suppressor genes are normal genes that slow down cell division or tell cells to die at the right time (a process known as apoptosis or programmed cell death). When tumor suppressor genes don’t work properly, cells can grow out of control, which can lead to cancer.
Detailed explanation-3: -This protein acts as a tumor suppressor, which means that it regulates cell division by keeping cells from growing and dividing (proliferating) too fast or in an uncontrolled way.
Detailed explanation-4: -Tumor suppressor genes function to either repress or inhibit the cell cycle or promote apoptosis. The more specific functions of tumor suppressor proteins fall into several categories, including[1][21]: Inhibition of mitogenic signaling pathways. Inhibition of cell cycle progression.
Detailed explanation-5: -Tumor suppressor genes are genes that code for the negative regulator proteins, the type of regulator that-when activated-can prevent the cell from undergoing uncontrolled division.