Question

Which of the following statements are correct

• A. Normal cells show a property of contact inhibition
• B. Cancer cells show contact inhibition
• C. Contact inhibition controls uncontrolled growth of cells
• D. Contact inhibition leads to uncontrolled growth of cells

Answer 1

Answer: (A), (C)

The correct options are
A Normal cells show a property of contact inhibition
C Contact inhibition controls uncontrolled growth of cells

Normal cells pass through a limited number of cell divisions before they die.Normal cells when placed on a tissue culture dish, they proliferate until the surface of the dish is covered by a single layer of cells just touching each other. Then mitosis ceases. This phenomenon is called contact inhibition.Cancer cells show no contact inhibition. They proliferate indefinitely , having uncontrolled growth and give rise to a mass of cells called tumor.