E Coli Has Been Isolated and Cultured from Three Different

question 58

Multiple Choice

E. coli has been isolated and cultured from three different individuals. Upon biochemical testing of these three cultures, you find that there are differences in some reactions. What is the best explanation of these differences?

• A) These represent three different species of E. coli.
• B) This is normal genetic variation seen among strains of E. coli.
• C) Two of the cultures are mutants of the other.
• D) The other two cultures are not really E. coli.
• E) Mistakes have been made in the test interpretation.

---

Definitions:

Historical Relationship

The examination and understanding of how past interactions, patterns, or events influence current states or future developments.

Ratio Analysis

A quantitative method of projecting HR demand by analyzing the historical relationship between an operational index and the number of employees required.

Operational Index

A quantifiable measure used to assess, compare, and track the efficiency or performance of a business's operations over time.

Estimating HR Demand

The process of forecasting the future needs for human resources in an organization based on operational requirements and strategic goals.