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Which one of the following does not belong with the others?

Select one:

A. Coxiella

B. Ehrlichia

C. Staphylococcus

D. Rickettsia

E. None of the above

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Fimbriae and pili differ in that pili

Select one:

A. Are composed of flagellin.

B. Are used for asexual reproduction.

C. Are used for attachment.

D. Are used to transfer DNA.

E. Are composed of pilin.

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Archaea differ from bacteria because archaea

Select one:

A. Lack nuclei.

B. Lack peptidoglycan.

C. Use organic compounds for food.

D. Reproduce by binary fission.

E. None of the above.

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Transformation is the transfer of DNA from a donor to a recipient cell

Select one:

A. By a bacteriophage.

B. By cell-to-cell contact.

C. By crossing over.

D. As naked DNA in solution.

E. By sexual reproduction.

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Large antibodies that agglutinate antigens are

Select one:

A. IgG.

B. IgM.

C. IgA.

D. IgD.

E. IgE.

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Which of the following provides taxonomic information that includes the others?

Select one:

A. Nucleic acid-base composition

B. Amino acid sequencing

C. Numerical taxonomy

D. Nucleic acid hybridization

E. Biochemical tests

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Which of the following best describes the pattern of microbial death?

Select one:

A. All of the cells in a culture are never killed.

B. The pattern varies depending on the species.

C. The pattern varies depending on the antimicrobial agent.

D. All the cells in a culture die at once.

E. The cells in a population die at a constant rate.

 
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