Why Have Some Microbiologists Proposed Using Ribosomal RNA as the Basis

question 16

Multiple Choice

Why have some microbiologists proposed using ribosomal RNA as the basis for defining bacterial species?

• A) Bacteria are not interbreeding populations, and ribosomal RNAs are highly conserved genes present in all prokaryotes.
• B) Ribosomal RNAs are highly conserved genetic sequences present in all prokaryotes.
• C) Bacteria vary too little in their physical and biochemical traits.
• D) The ʺinterbreeding populationʺ criterion does not apply to bacteria.
• E) Ribosomal RNA is the basis for domain assignment.

---

Definitions:

Corporate Citizenship

The social responsibility of a company to its environment and community, involving efforts to contribute positively to societal goals.

Profits

The financial gain obtained when revenues generated from business activities exceed the expenses, costs, and taxes associated with sustaining the business.

Dividends

Payments made by a corporation to its shareholders from its profits.

Codes of Conduct

Written guidelines that outline the expected ethical behaviors and norms for individuals within an organization or profession.