A bacterial strain divides once every 30 minutes. After 90 minutes, a single bacterium can form a total of ___ bacteria

After 30 minutes = 2, after 60 = 4, after 90 = 6.

After 30 minutes = 2, after 60 = 4, after 90 = 8.

If a cell splits every 20 minutes how many would be present after 4, 8, and 12 hours ?

Is the answer 6 or 8?

To find the total number of bacteria that can form after 90 minutes, we need to determine how many times the bacterial strain can divide within that time period.

The bacterial strain divides once every 30 minutes, so within 90 minutes, it would divide 90/30 = 3 times.

Each time the bacterial strain divides, it doubles in number. Therefore, after three divisions, the starting single bacterium can form a total of 2^3 = 8 bacteria.

So, after 90 minutes, a single bacterium can form a total of 8 bacteria.