TLS Online TPP Program

#Question id: 4343

#SCPH01 Biochemistry

Suppose an experimenter becomes proficient with a technique that allows her to move DNA sequences within a prokaryotic genome. If a researcher moves the repressor gene (lacI), along with its promoter, to a position at some several thousand base pairs away from its normal position, which of the following results would be expected?

TLS Online TPP Program

#Question id: 14253

#SCPH05 I Biotechnology

Hybridoma cells immobilized on surfaces of Sephadex beads are used in a packed column for production of monoclonoal antibodies (Mab). Hybridoma concentration is approximately X = 5 g/l in the bed. The flow rate of the synthetic medium and glucose concentration are Q = 2 l/h and S0 = 40 g/l, respectively. The rate constant for Mab formation is k = 1 gX/l-d. Assume that there are no diffusion limitations and glucose is the rate limiting nutrient.  Determine the volume of the packed bed for 95% glucose conversion. Bed diameter is D0 = 0.2 m. Neglect the growth of the hybridomas and assume first order kinetics. 

TLS Online TPP Program

#Question id: 11952

#I Life Science/ Life Sciences Group – I-V

Lysine is an essential amino acid for animals. If an animal did not consume lysine in its diet, you might expect that the animal

TLS Online TPP Program

#Question id: 807

#SCPH05 I Biotechnology

Which of the following forces can stabilize a normal DNA double-helix?

TLS Online TPP Program

#Question id: 10521

#SCPH06 I Botany

Which is an example of a plant-derived DAMP found in tomato that is produced in response to wounding associated with herbivore activity?