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Goal: You and your partners in investigation are to read the following scenario of a spring picnic and determine what “bug” is making people sick and how it was transferred from food to person. Directions: First read the scenario. Within your group assign the bacterium below to be researched, just […]

1. What effect will each of the following have on induction of thelac operon by lactose in a medium that lacks glucose? a. A mutation that inactivates beta-galactosidase.b. A mutation that inactivates galactoside permease.c. A mutation that makes the lac repressor proteinincapable of binding to the lac operator site.d. A […]

A standard procedure in purifying tubulin is to extract the tissue on ice, then add GTP and warm the tissue extract to 37°C. The warmed extract is then centrifuged at a speed insufficient to pellet average sized proteins, but sufficient to pellet large protein complexes. After centrifugation, the supernatant is […]

1. Design a method to extract, purify, and determine the number and sizes of proteins found in the ribosomes of bacterial cells. 2. Dna both replicates and directs protein. provide and explain 3different exmples of how hydrogen bonds allow specificity in these processes. 3. Describe the structure and function of […]