Exam 17: Microbial Taxonomy and the Evolution of Diversity

The scientific study of organisms with the ultimate goal of characterizing and arranging them in an orderly manner is

The second edition of Bergey's manual groups pathogenic species together rather than in phylogenetic groups.

Numerical taxonomy is based primarily on the percent DNA sequence homology.

The science dealing with classification is called

Bacterial strains that have distinct antigenic properties are called __________.

The organisms in which of the following are more closely related?

A classification system based on evolutionary relationships is called a __________ system.

Phylogenetic trees show inferred evolutionary relationships in the form of multiple branching lineages connected by nodes.

Microorganisms do not generally reproduce sexually; therefore, species are usually defined by phenotypic and genotypic similarities.

A classification system based on mutual similarity that involves comparing as many characteristics as possible is called a __________ system.