TLS Online TPP Program
More Questions
TLS Online TPP Program
#Question id: 15618
#SCPH01 Biochemistry
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?
TLS Online TPP Program
#Question id: 404
#SCPH01 Biochemistry
When a mixture of 3-phosphoglycerate and 2-phosphoglycerate is incubated at 25 °C with phosphoglycerate mutase until equilibrium is reached, the final mixture contains six times as much 2-phosphoglycerate as 3-phosphoglycerate. Which one of the following statements is most nearly correct, when applied to the reaction as written? (R = 8.315 J/mol·K; T = 298 K) 3-Phosphoglycerate -> 2-phosphoglycerate
TLS Online TPP Program
#Question id: 12943
#SCPH06 I Botany
Choose the correct order for the steps involve in Insitu hybridization.
1. Cell permeaabilisation
2. Detection of hybridised probe radioactive.
3. Wash excess probe from section
4. Cell fixation
TLS Online TPP Program
#Question id: 18837
#SCPH01 Biochemistry
Which of the following statement is correct about comparative method of RNA secondary structure prediction?
TLS Online TPP Program
#Question id: 615
#SCPH05 I Biotechnology
The following data were obtained in the presence and absence of inhibitor. What type of inhibition is shown?