Tille: Bailey & Scott’s Diagnostic Microbiology, 14th Edition
MULTIPLE CHOICE
1. Taxonomy can be described as a system that:
a. classifies, names, and identifies microorganisms in a consistent manner.
b. classifies microorganisms, based on their genetic makeup.
c. classifies microorganisms, based on their phenotypic makeup.
d. classifies microorganisms, based on their cellular and colonial traits.
ANS: A
Taxonomy is a system that consistently classifies, names, and identifies microorganisms. Although org
phenotypic characteristics, as well as cellular and colonial characteristics, answer A best describes the
REF: 1
2. The most basic taxonomic group that can be defined as a collection of bacterial strains that share many
genetic features is:
a. genus.
b. species.
c. class.
d. kingdom.
ANS: B
Bacteria are classified into the same species, based on their physiologic and genetic similarities and the
in other species.
REF: 2
3. Colonial and microscopic morphologic properties, along with the pigmentation of colonies, would belo
group of ________ characteristics.
a. genotypic
b. taxonomic
c. phenotypic
d. subspecies
ANS: C
Phenotypic characteristics are the observable properties of the subject.
REF: 3-4
4. Which binomial name is correctly written?
a. Escherichia coli
b. Escherichia coli
c. Escherichia coli
d. Escherichia Coli
ANS: A
The genus should be capitalized, and the species should be in lowercase. The entire name is either itali
REF: 2
5. The use of a double genus in a microorganism’s label, such as Burkholderia (Pseudomonas), indicates
a. does not fit well in either group but has some characteristics of both groups.
b. is a genetic cross between the two groups.
c. has been moved from one genus (Pseudomonas) to another genus (Burkholderia).
d. has been moved from one genus (Burkholderia) to another genus (Pseudomonas).
ANS: C