To ensure turbulent conditions and minimum mixing time during agitation with a turbine impeller, the Reynolds number must be at least 10⁴. A stirred laboratory-scale fermenter with a turbine impeller 5 cm in diameter is operated at 800 rpm. If the density of broth being stirred is close to that of water, what is the upper limit for viscosity of the suspension if adequate mixing is to be maintained?

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#Question id: 4331

#Section 3: Genetics, Cellular and Molecular Biology

In eukaryotic cells, transcription cannot begin until

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#Question id: 10512

#Section 6: Plant, Animal and Microbial Biotechnology

Members of the Poaceae family, which includes all of the cereal crops, use benzoxazinoids alkaloids are derived from,

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#Question id: 13040

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

Which of the following is incorrect about Oligonucleotide Design in A microarray? 

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#Question id: 1424

#Section 3: Genetics, Cellular and Molecular Biology

Gain-of-function mutations in which of the following genes typify colorectal carcinomas?

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#Question id: 2065

#Section 2: General Biology

Which of the following are least likely to diffuse through the phospholipid bilayer of a cell membrane?