A steam steriliser is used to sterilise liquid medium for fermentation. The initial concentration of contaminating organisms is 10⁸ per litre. For design purposes, the final acceptable level of contamination is usually taken to be 10^-3cells; this corresponds to a risk that one batch in a thousand will remain contaminated even after the sterilisation process is complete. For how long should 1 m³ medium be treated if the temperature is 80⁰C ________________.10^6

 To be safe, assume that the contaminants present are spores of Bacillus stearothermophilus, one of the most heat-resistant microorganisms known. For these spores the activation energy for thermal death is 283 kJ gmo1^-1 and the Arrhenius constant is 10^36.2 s^-1

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#Question id: 14853

#Section 1: Engineering Mathematics

If the sum of the mean and the variance of a Binomial distribution for 18 trials is 10, find the distribution

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#Question id: 423

#Section 4: Fundamentals of Biological Engineering

The glycolytic pathway oxidizes glucose to two molecules of pyruvate and also produces a net of two molecules of ATP. ATP allosterically inhibits the enzyme, PFK-1, that catalyzes the third step of glycolysis. This is an example of ________.

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#Question id: 14206

#Section 5: Bioprocess Engineering and Process Biotechnology

which phenomenon is not related with crabtree effect :

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#Question id: 16859

#General Aptitude

I……… (write) to her last week.

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#Question id: 4823

#Section 3: Genetics, Cellular and Molecular Biology

Which one of the following DNA markers can be used to distinguish between a homozygote and heterozygote ?