Activity of trp operon is taken as a measurement of ;

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#Question id: 335

#SCPH05 I Biotechnology

Suppose the major solutes in intact lysosomes are KCl (~0.1 M) and NaCl (~0.03 M). When isolating lysosomes, what concentration of sucrose is required in the extracting solution at room temperature (25 °C) to prevent swelling and lysis?

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#Question id: 15618

#SCPH28 | Zoology

Wild type E. coli metabolizes the sugar lactose by expressing the enzyme ß-galactosidase. You have isolated a mutant that you call lac1-, which cannot synthesize ß-galactosidase and cannot grow on lactose (Lac-). During an condition  isolate  a second Lac– mutation, which you designate lac2-. Using P1 phage on this strain and use the resulting phage lysate to infect the lac2- strain, selecting for   Kanr   transductants. In this case, all 100   Kanr   transductants that are examined are Lac–. What does this result tell you about the relationship between the lac1- and lac2- mutations?

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#Question id: 17074

#SCPH01 Biochemistry

What are some disadvantages of monoclonal antibody production?

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#Question id: 23200

#SCPH06 I Botany

Scanning electron microscopy (SEM) allows investigators to view the 

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#Question id: 9216

#SCPH28 | Zoology

Which of the following criteria have to be met for a species to qualify as invasive?