1. Only one of the designations below is correct. Which one?
A. Streptococcus Pyogenes B. Smallpox virus C. Bacillus Anthracis
D. pneumococci *E. Corynebacterium diphtheriae
2. Which of the following is an appropriate scientific name (binomial system of nomenclature) for a bacterium?
A. Anthrax bacillus B. pneumococcus C. coccus
*D. Streptococcus pneumoniae E. tubercle bacillus
3. DNA hybridization is used to classify microorganisms. Which of the following is incorrect?
A. close DNA homology indicates that two organisms are related
*B. DNA strands from different bacteria will anneal by base pairing
C. the amount of annealing is inversely proportional to the relatedness
D. close DNA homology suggests a common ancestor
E. a small degree of homology suggests the common ancestor is evolutionarily distant
4. Numerical taxononomy is based on:
A. numerology B. astrology C. protein profiles
*D. numerical patterns of similarities between organisms E. DNA homology
5. Techniques for studying evolutionary relationships (relatedness) include:
A. phage typing B. 16S rRNA homology C. Probe hybridization
*D. a, b and c E. none of the above
6. Viruses are classified in the kingdom:
A. Monera B. Protista C. Archaebacteria
D. Animalia *E. none
7. The eukaryotic kingdoms include:
A. Monera B. Plantae C. Fungi
D. a and b *E. b and c
8. The prokaryotic kingdoms include:
A. Archaebacteria B. Plantae C. Eubacteria
D. Animalia *E. a and c
9. The binomial system of classification is used with:
A. plants B. viruses C. bacteria
*D. a and c E. a and b
10. The significance of taxonomy is:
A. the organization of viruses into an understandable order
B. the organization of organisms into an understandable order
C. the detection of evolutionary relationships
D. the detection of disease causing organisms
*E. a, b, c and d
11. Phage typing is a technique of classification used with:
A. animals B. plants *C. bacteria
D. bacteriophages E. viruses
12. The science of taxonomy was founded by:
*A. Linnaeus B. Koch C. Enders
D. Jenner E. Castro
13. The bacteria are classified in the kingdom:
A. Protista B. Animalia C. Fungi
D. Plantae *E. Monera
14. Which agent in the list below is a bacterium that is not easily stained and observed by using the Gram-stain procedure?
A. Histoplasma capsulatum B. Streptococcus pyogenes *C. Treponema pallidum
D. Neisseria gonorrhoeae E. Staphylococcus aureus
15. Which statement is incorrect for bacteria?
A. bacteria have both DNA and RNA
*B. bacteria can not transfer genetic material from one cell to another
C. bacteria have peptidoglycan
D. bacteria are procaryotic
E. bacteria have a cell membrane
16. For the pairs of organisms listed below, in which case would it be most difficult to distinguish (to tell one from the other) the organisms?
A. Streptococcus pneumoniae and Staphylococcus aureus
B. Streptococcus pneumoniae and Bacillus anthracis
C. Streptococcus pneumoniae and Clostridium tetani
D. Streptococcus pneumoniae and Escherichia coli
*E. Streptococcus pneumoniae and viridans streptococci
17. In taxonomy Class is below Order
A. True *B. False
18. The 16S rRNA is part of the large sub-unit of the ribosome
A. True *B. False
19. Provide a distinctive feature between Archae and bacteria.
20. What was the rationale for the creation of the 3 kingdoms or Domains?