Which one of the following proteins is involved in promoter recognition in eukaryotes?

#Question id: 2933

#Section 3: Genetics, Cellular and Molecular Biology

During G1, prereplication complexes:

#Question id: 14295

#Section 5: Bioprocess Engineering and Process Biotechnology

Pseudomonas methylotrophus is used to produce single-cell protein from methanol in a 1000 m³ pressure-cycle airlift fermenter. The biomass yield from substrate is 0.41 g g^{- 1}, K_S is 0.7 mg l^{- 1}, and the maximum specific growth rate is 0.44 h^{- 1}. The medium contains 4% (w/v) methanol. A substrate conversion of 98% is desirable. The reactor may be operated either in batch or continuous mode. If operated in batch, an inoculum of 0.01% (w/v) is used and the downtime between batches is 20 h. If operated continuously, a downtime of 25 d is expected per year. Neglecting maintenance requirements, compare the annual biomass production from batch and continuous reactors?

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#Question id: 19336

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

#Question id: 1405

#Section 3: Genetics, Cellular and Molecular Biology

A gain-of-function mutation in which of the following would have the same effect as a gain-of-function mutation in Ras?

#Question id: 3039

#Section 2: General Biology

An inoculated thioglycolate medium culture tube shows dense growth at the surface and turbidity throughout the rest of the tube. What is your conclusion?