You Are Studying a Protein in Salmonella Typhimurium That You

question 73

Multiple Choice

You are studying a protein in Salmonella typhimurium that you believe is a toxin. Whenever you attempt to purify the protein from lysed cell cultures, you get two forms of the protein. One form is smaller than the other and is missing 15 amino acids from the N-terminus compared to the larger form. This leads you to hypothesize that

• A) there are two termination sites in the mRNA.
• B) the protein requires chaperonins to fold properly.
• C) the protein is secreted and folds outside of the cell.
• D) you need to re-do the experiment because there should only be one form.

---

Definitions:

Activity-Based Costing

A costing method that assigns overhead and indirect costs to related products and services based on the actual consumption of resources.

Overhead Cost Allocated

Expenses related to the running of a business that are spread out across different departments or products.

Activity Rate

A rate used in activity-based costing to assign costs to activities based on their use of resources.

Activity Cost Pool

Refers to a grouping of all costs related to a specific activity used in activity-based costing to allocate overhead costs more accurately to products or services.