Question

The GO is a stage outside of the cell cycle commonly referred to as the "resting stage" because

Answer 1

Answer:

G₀ being a stage of the cell cycle that is the resting stage, where there is no cell division, the cells that would remain in the G₀ stage throughout life are the neurons (option c).

Explanation:

In the G₀ phase, considered outside the cell cycle, there is cell metabolic activity but no cell division, since cyclins and cyclin-dependent kinases disappear. Some cells, such as neurons, do not undergo cell division throughout the life of an organism, so they remain in G₀.

In some organs, such as the liver, the hepatocyte may remain in G₀ until the organ receives an injury, and may regenerate by cell division. This is not the case of neurons, which maintain a constant quantity throughout life.

The other options are not correct because:

    a. Cancer cells are characterized by a very active and uncontrolled cell division process.

    b. Liver cells can remain in G₀, but cell division can be activated when required.

    d. Epithelial cells are constantly dividing, since it is a tissue that undergoes frequent cell replacement.