pyrethroids that occur in the leaves and flowers of Chrysanthemum species show very striking insecticidal activity. Pyrethroids are________

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#Question id: 9196

#SCPH06 I Botany

If all individuals in the last remaining population of a particular frog species were all highly elated, which type of diversity would be of greatest concern when planning to prevent the species from going extinct?

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#Question id: 442

#SCPH06 I Botany

Levels of ATP and ADP are partly maintained in cells by

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#Question id: 14824

#SCPH06 I Botany

On exposure to desiccation, which of the following bacteria are least likely to experience rapid water loss?

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#Question id: 5250

#SCPH05 I Biotechnology

A researcher would like to map the location of galE and trpA genes in a new species of bacterium that appears to be closely related to E. coli. He decides to use cotransduction, and generatesnappropriate donor and recipient strains. He is disappointed when cotransduction is not seen in his experiement. What is the most reasonable explanation for this situation?

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#Question id: 14256

#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.  If Yp/s is 4 mg Mab/g glu, determine productivity of the system? __________________