A genetically-engineered strain of yeast is cultured in a bioreactor at 30⁰C for production of heterologous protein. The oxygen requirement is 80 mmol 1-1 h-I; the critical oxygen concentration is 0.004 mM. The solubility of oxygen in the fermentation broth is estimated to be 10% lower than in water due to solute effects. What mass-transfer coefficient is required if pure oxygen is used instead of air?                       

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#Question id: 181

#Section 2: General Biology

Titration of valine by a strong base, for example NaOH, reveals two pK’s. The titration reaction occurring at pK2 (pK2 = 9.62) is:

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#Question id: 3930

#Section 3: Genetics, Cellular and Molecular Biology

Which is not part of the lac operon?

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#Question id: 18013

#Section 1: Engineering Mathematics

Each of five questions on a multiple-choice examination has four choices, only one of which is correct. The student is attempting to guess the answers. The random variable X is the number of questions answer correctly. Probability that the student will get At least one correct answer.

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#Question id: 2138

#Section 2: General Biology

Integrins are

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#Question id: 4825

#Section 3: Genetics, Cellular and Molecular Biology

How many genetically different gametes can be made by an individual of genotype AaBbCcDd if gene A, B are completely link and other are unlink?