Question

Researchers have found a new type of bacteria, and they want to determine its phylum. What

would be the most reliable method to do so?

A) Conduct a Gram-stain test.
B) Perform an analysis of metabolic pathways.
C) Analyze the morphological characteristics of the bacteria.
D) Determine the ribosomal RNA sequence of the bacteria.

Answer 1

The most reliable method to determine the phylum of a new type of bacteria would be to D) determine the ribosomal RNA sequence of the bacteria.

Step-by-step explanation:

The most reliable method to determine the phylum of a new type of bacteria would be to D) Determine the ribosomal RNA sequence of the bacteria.

In Bergey's Manual, determinations of identity or taxonomic group of bacteria are based on many criteria. One of the most accurate and precise methods is sequencing the ribosomal RNA (rRNA) of the bacteria. This method provides a unique genetic fingerprint that can be used to classify and identify the bacterial species. By comparing the rRNA sequence of the new bacteria to known sequences in databases, researchers can determine its phylum and potentially even its genus and species.