“Footprinting” or DNase protection is a technique used to identify:

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#Question id: 655

#SCPH28 | Zoology

A change from one conformation of a molecule to another involves ________.

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#Question id: 14257

#SCPH05 I Biotechnology

The kLa of a small bubble column (2 l) has been measured as 20 h-1 at an airflow of 4 l/m in. If the rate of oxygen uptake by a culture of Catharanthus roseus is 0.2 mmol O2/g dry weight-h and if the critical oxygen concentration must be above 10% of saturation (about 8 mg/l), what is the maximum concentration of cells that can be maintained in the reactor?

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#Question id: 14277

#SCPH05 I Biotechnology

Lactobacillus casei is propagated under essentially anaerobic conditions to provide a starter culture for manufacture of Swiss cheese. The culture produces lactic acid as a by-product of energy metabolism. The system has the following characteristics:

                                                                 

 

A stirred fermenter is operated in fed-batch mode at quasisteady state with a feed flow rate of 4 m³ h^-1 and feed substrate concentration of 80 kg m^-3. After 6 h, the liquid volume is 40 m³. What mass of cells is produced after 6 h fed-batch operation?

                               __________________

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#Question id: 2673

#SCPH06 I Botany

For a repressible operon to be transcribed, which of the following must be true?

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#Question id: 4329

#SCPH01 Biochemistry

Within a cell, the amount of protein made using a given mRNA molecule depends partly on