Asingle cell undergoes mitosis every five minutes. how many cells will result from this cell in 20 minutes?
a. 4
c. 16
b. 8
d. 20

In mitosis, a single cell is divided into two new cells having separate nuclei. From the given scenario in this item, if initially there is one cell, after five minutes, there will be two cells. After 10 minutes, there will be four. After 15 minutes, there will be eight. Lastly, after 20 minutes, there will be 16 cells. Thus, the answer is 16.

If a single cell undergoes mitosis every five minutes, the number of cells that will result after 20 minutes is . After 5 minutes, from 1 cell there will be 2 cells. After another 5 minutes (10 minutes in total), each of these 2 cells will give 2 cells and there will be 4 cells in total. After another 5 minutes (15 minutes in total, each of these 4 cells will give 2 cells and there will be 8 cells in total. After another 5 minutes (20 minutes in total, each of these 8 cells will give 2 cells and there will be 16 cells in total.