A bacterial culture having a specific oxygen uptake rate of 5 mmol O2 (g DCW)⁻¹ h⁻¹ is being grown aerobically in a fed-batch reactor. The maximum value of the volumetric oxygen transfer coefficient is 0.18 s⁻¹ for the stirred tank bioreactor and the critical dissolved oxygen concentration is 20% of the saturation concentration (8 mg L⁻¹). The maximum density to which the cells can be grown in the fed-batch process, without the growth being limited by oxygen transfer, is approximately

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#Question id: 14127

#Section 7: Recombinant DNA technology and Other Tools in Biotechnology

The most basic sequence alignment method is –

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#Question id: 19956

#Section 5: Bioprocess Engineering and Process Biotechnology

On a glucose medium, the growth of an organism is characterized by the following Monod model and stoichiometric parameters μm = 0.3 h^-1, Ks =0.05 g.l^-1 and Yxs = 0.3 g.g^-1 .When this organism is grown in a 2 litre continuous on a medium containing 10 g.l^-1 of glucose added at 1 l.h^-1, the steady state concentration of biomass in the reactor will be

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#Question id: 8927

#Section 6: Plant, Animal and Microbial Biotechnology

Arthropods invaded land about 100 million years before vertebrates did so. This most clearly implies that

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#Question id: 3342

#Section 3: Genetics, Cellular and Molecular Biology

Neutral alleles are those that do not alter fitness and average reproductive success does not differ between individuals that carry one neutral allele or the other. The frequencies of these neutral alleles may change in a population by

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#Question id: 3318

#Section 3: Genetics, Cellular and Molecular Biology

When members of a metal- torerant and metal sensitive species that initially occupied the same habitat within the same range diverge into two species due to starting to show a change in their flowering season. This process known as