Question

Which of the following are features that distinguish cancer cells from normal cells? A. Normal cells undergo cytokinesis; cancer cells do not undergo cytokinesis. B. Normal cells have contact inhibition; cancer cells have no contact inhibition. C. Normal cells metastasize; cancer cells do not metastasize. D. Normal cells can divide a finite number of times; cancer cells can divide indefinitely. E. Both b) and d) are correct.

Answer 1

Cancer cells differ from normal cells in several ways, including their ability to undergo cytokinesis, contact inhibition, and indefinite division.

Step-by-step explanation:

The features that distinguish cancer cells from normal cells are:

1. Normal cells undergo cytokinesis; cancer cells do not undergo cytokinesis. Cytokinesis is the process by which cells divide to form two daughter cells. In cancer cells, this process is disrupted, leading to uncontrolled cell division and tumor formation.
2. Normal cells have contact inhibition; cancer cells have no contact inhibition. Contact inhibition is the ability of normal cells to stop dividing when they come into contact with other cells. In cancer cells, this mechanism is lost, allowing them to grow uncontrollably.
3. Normal cells can divide a finite number of times; cancer cells can divide indefinitely. Normal cells have a limited capacity for division called the Hayflick limit, while cancer cells can divide indefinitely, leading to the formation of tumors.

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