In E. coli ________ is an activator and ________ is a negative allosteric modulator of the enzyme phosphofructokinase-1. 

#Question id: 4124

#SCPH28 | Zoology

Assuming that the average amino acid residue contributes 110 to the peptide molecular weight, what will be the minimum length of the mRNA encoding a protein of molecular weight 50,000?

#Question id: 16016

#SCPH05 I Biotechnology

#Question id: 4335

#SCPH01 Biochemistry

Which of the following mutations would be most likely to have a harmful effect on an organism?

#Question id: 14309

#SCPH05 I Biotechnology

Glucose is converted to ethanol by immobilized yeast cells entrapped in gel beads. The specific rate of ethanol production is: q_P = 0.2 g ethanol/g-cell-h. The effectiveness factor for an average bead is 0.8. Each bead contains 50 g/L of cells. The voids volume in the column is 40%. Assume growth is negligible (all glucose is converted into ethanol). The feed flow rate is F = 400 l/h and glucose concentration in the feed is S_0i = 150 g glucose/l. The diameter of the column is 1 m and the yield coefficient is about 0.49 g ethanol/g glucose. The column height is 4 m. What is the glucose conversion at the exit of the column?

#Question id: 15730

#SCPH28 | Zoology