Q.
A bacterium divides every 20 minutes. If a cultures containing 106 cells per ml is grown for 120 minutes, what will be the cell concentration per ml after 120 minutes?
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a
32 × 106 cells
b
64 × 106 cells
c
16 × 106 cells
d
120 × 106 cells
answer is B.
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Detailed Solution
The concentration of cells is 26 X 106. In 120 minutes 6 generations of divisions occur.
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