In a batch production of penicillin, 40 m³ capacity of the plant, sterile air is required to be supplied. The bioreactor requires 1 vvm (volume of air/volume of broth. min). The incoming air contains 3000 cells/m³of air, for 100 hours operation. Calculate the depth of filter if the penetration of bacteria is 1 in 1 million. 

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#Question id: 15863

#Section 6: Plant, Animal and Microbial Biotechnology

what is protoplast?

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#Question id: 16444

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

Gels of 15% polyacrylamide are useful for separating proteins in the range Mr = 100,000 to 10,000,  while a 7.5% gel are used to separate 

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#Question id: 18151

#Section 2: General Biology

The standard free-energy changes for the reactions below are given. Phosphocreatine -> creatine + Pi DG'° = –43.0 kJ/mol ATP ->  ADP + Pi DG'° = –30.5 kJ/mol What is the overall DG'° for the following reaction? Phosphocreatine + ADP -> creatine + ATP_______ kJ/mol

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#Question id: 15936

#Section 1: Engineering Mathematics

If A then the value of k for which A² = 8A + kl is .... 

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#Question id: 1862

#Section 2: General Biology

X-linked agammaglobulinemia results from a mutation in: