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Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
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A bacterial strain with a doubling time of 4 hours is mixed in equal proportion with another strain with a doubling time of 9 hours, and the growth is monitored
A bacterial strain with a doubling time of 4 hours is mixed in equal proportion with another strain with a doubling time of 9 hours, and the growth is monitored during the log phase which lasts for about three days. The observed doubling time will a. decrease with time b. increase with time C. remain constant at about 6.5 hours d. fluctuate between 4 and9 hours IISC] 07 Chemolithotrophs are those bacteria which can itilin
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Abhijeet Gaurav![best-answer]()
Answer is (A). It Will decrease with time. Now earlier generation time is 1+1 hrs. Now after 4hr it's (1*2+1) = 3 After 4hr of it is (2*2+1) = 5 Now bacterial load can be read by OD in spectrophotometer & it doesn't depend on the strain. Now you started with 5 which is more than 4 & your generation time is less than 8 hr. Now while doing this you Will notice that the generation time is decreasing.
sorry sir but the given answer is B
i am really confused please help