How many bacteria are produced in four hours if a bacterium divides once in half an hour ?

Options

A. 8
B. 64
C. 16
D. 256

Answer

D

Explanation

Population of bacteria cell `=2^(n)`
No of generation `= ("Total time")/("Generation time")`
`n= (4 xx 60)/(30)= 8 rArr 2^(n) = 2^(8)= 256`