TLS Online TPP Program

#Question id: 10528


The insect ingests plant tissue containing the fatty acids, an enzyme in the gut conjugates the plant-derived fatty acid to an insect-derived amino acid typically;

#I Life Science/ Life Sciences Group – I-V
  1. α-linolenic acid conjugates with lysine residue
  2. linoleic acid conjugates with aspartic acid
  3. linolenic acid conjugates with glutamine
  4. β-linoleic acid conjugates with aspartine

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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?