Penicillin is produced by P. chrysogenum in a fed-batch culture with the intermittent addition of glucose solution to the culture medium. The initial culture volume at quasi-steady state is V0 = 500 l, and glucose-containing nutrient solution is added with a flow rate of F = 50 l/h. Glucose concentration in the feed solution and initial cell concentration are S0 = 300 g/l and X0 = 20 g/l, respectively. The kinetic and yield coefficients of the organism are mm = 0.2 h-1 , KS = 0.5 g/l, and YX/S = 0.3 g dw/g glucose. Determine the concentration of cells at quasi-steady state when t = 10 h.

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#Question id: 789

#SCPH06 I Botany

Presence of large numbers of modified specially methylated nucleotides in tRNA contribute in

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#Question id: 6999

#SCPH01 Biochemistry

The developmental precursors to the gonadal tissues of Caenorhabditis elegans uniquely contain ________.

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#Question id: 4314

#SCPH28 | Zoology

A researcher introduces double-stranded RNA into a culture of mammalian cells and can identify its location or that of its smaller subsections experimentally, using a fluorescent probe. Some time later, she finds that the introduced strand separates into single-stranded RNAs, one of which is degraded. What does this enable the remaining strand to do?

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#Question id: 15221

#SCPH06 I Botany

Which technique can distinguish polyphosphorylated proteins

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#Question id: 10994

#I Life Science/ Life Sciences Group – I-V

When recording lead II on an EKG, the positive electrode is the