Question

Which of the following situations may result in many cells leaving extended time in G0 and entering Mitosis quickly?

A) The cutting of a fingernail and new growth occurring.

B) A virus enters the body and white blood cells rapidly divide.

C) A neuron dies and others need to replace its space.

D) Cells lining the digestive track are scalded and replaced.

Answer 1

Answer:

B

Explanation:

Because in other options the cell are replaced but in B cell divides which is called cell division

Answer 2

A virus enters the body and white blood cells rapidly divide.

Option: B

Explanation:

• Mitosis is the process of the division of the old cells to form new cells. Now G0 is the checkpost of mitosis. Many cell cross G0 when there is a need of a large number of cells.  

• This doesn't include cases where there is a need for replacement of cell due to damage. Nails are dead tissue, and dead tissue do not multiply, hence option (a) is incorrect.  

• In case of (c) and (d) there is replacement of the old cells. Hence they are incorrect.

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