Laboratory Strains of the Model Organism Escherichia Coli That Are

question 10

Multiple Choice

Laboratory strains of the model organism Escherichia coli that are resistant to antibiotics are very often used in research laboratories as well as in the biotechnology industry. If cultures of such bacteria were allowed to contaminate the environment uncontrollably, it is possible that at some point, pathogenic bacteria such as Neisseria meningitidis (which causes meningitis and can cause death, especially in children) could acquire the same antibiotic-resistance gene, causing a meningitis outbreak that is difficult to treat. In this scenario, which of the following mechanisms is a more likely source of the antibiotic-resistance gene in N. meningitidis?

• A) Random new gene generation
• B) Intragenic mutation
• C) Gene duplication
• D) DNA segment shuffling
• E) Horizontal gene transfer

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Definitions:

Capacity Allocation

The process of distributing available resources or capacity among various operations, processes, or production orders to maximize efficiency and meet demand.

Intermediate Future

A period that lies between the near future and the distant future, often used in the context of forecasting or planning over a few years to a decade.

Perishable Inventory

Items or goods that have a limited lifespan or shelf life, requiring careful inventory management to minimize losses due to spoilage or obsolescence.

Yield Management

A pricing strategy that uses understanding of consumer behavior and market demand to maximize revenue, often used in the airline and hotel industries.