Somatic hybrids exhibit the full somatic complement of one parental species, while all or nearly all chromosomes of the other parental species are lost during the preceding mitotic divisions; such hybrids arc referred to as

#Question id: 12926

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

#Question id: 14311

#Section 5: Bioprocess Engineering and Process Biotechnology

Consider following fig, which applies to a fed-batch system.

Assume at t = 0, V = 100 l, X = 2 g/l, m = 1 h-1 , S0 = 4 g/l, and S = 0.01 g/l. V is increased at a constant rate such that dV/dt = 20 l/h = F (or flow rate) and X is constant at all times. What is µ at t = 5 h?

#Question id: 408

#Section 2: General Biology

Which of the following compounds has the largest negative value for the standard free-energy change (DG'°) upon hydrolysis?

#Question id: 14246

#Section 5: Bioprocess Engineering and Process Biotechnology

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

#Question id: 15568

#Section 1: Engineering Mathematics