CELL DIVISION
CELL DIVISION AND CANCEROUS CELLS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The cells lack cyclin.
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The petri dish inhibits cell growth.
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Contact with other cells stops cell growth.
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Most cells grown in petri dishes have a defective p53.
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Detailed explanation-1: -Which of the following explains why normal cells grown in a petri dish tend to stop growing once they have covered the bottom of the dish? Contact with other cells stops cell growth.
Detailed explanation-2: -Answer and Explanation: The factor that can stop the cells from growing is known as contact inhibition. Contact inhibition is the condition when one cell contact or attach with other cells. Contact inhibition makes the cells proliferate into cancerous cells.
Detailed explanation-3: -By manipulating single human cells in their laboratory, the researchers discovered that a protein called p16 also prompts cells to shut down and stop dividing.
Detailed explanation-4: -A cell splits into two daughter cells during “telophase". Normal cells “stop growing” when they come into contact with other cells. Proteins called “cyclins” help regulate the cell cycle. “Cancer” is a disorder in which some of the body’s cells lose the ability to control growth and division.