Exam 19: Microbial Taxonomy and the Evolution of Diversity

Conjugation is useful for determining relatedness between bacteria at the species level because it never occurs between organisms of different genera.

An unrooted tree containing four unrelated species can become rooted by adding

The binomial system of nomenclature assigns each organism a scientific name consisting of

Which of the following is not true about the G + C content percentages in DNA of organisms?

In an approach called __________ taxonomy,relatedness is determined by a wide range of phenotypic and genotypic information.

The G + C content of a DNA sample can be estimated from its T_M of a DNA.

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

The arrangement of organisms into groups is best described as

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

The pace of evolution does not always occur at a constant rate but is periodically interrupted by rapid bursts of speciation; this is known as _________ ________. ASM

A theoretical concept that is used to understand how and why certain organisms can be sorted into discrete taxonomic groups is known as the

The second edition of Bergey's Manual classifies bacteria

A general term used to describe groups based on mutual similarity or evolutionary relatedness is

Microbial species are collections of strains that share many stable properties in common but differ significantly from other strains.

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

Which of the following is true about Bergey's Manual?

The science dealing with classification is called

According to the endosymbiosis hypothesis

The type strain is the most representative strain of a particular species.

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