You have isolated a bacterium that you believe to be the causative agent of a new disease in mice. How would you test the second Koch’s postulates?
If you wish to use immunofluorescence stain to differentiate…
If you wish to use immunofluorescence stain to differentiate between E. coli and Staphylococcus aureus, which of the following components of the fluorescent microscopy technique would be DIFFERENT between the two sample preparations so that you will be able to differentiate one organism from the other?
Cells with a relatively simple cell morphology that do not h…
Cells with a relatively simple cell morphology that do not have a true membrane-delimited nucleus are called _______.
The figure below shows the four steps of Koch’s postulate. T…
The figure below shows the four steps of Koch’s postulate. The correct order of the postulates is
Light rays are refracted (bent) when they cross the interfac…
Light rays are refracted (bent) when they cross the interface between materials with different refractive indices.
Robert Koch is a German physician known for his contribution…
Robert Koch is a German physician known for his contribution to medical microbiology. When he proposed his four postulates, Robert Koch considered which of the following factors?
For Pasteur’s swan-necked flask experiment to work, all of t…
For Pasteur’s swan-necked flask experiment to work, all of the following are required EXCEPT?
The ribosomal RNA studies that led to the division of prokar…
The ribosomal RNA studies that led to the division of prokaryotic organisms into the Bacteria and the archaea were begun by ________.
Although developed over 100 years ago, Koch’s postulates con…
Although developed over 100 years ago, Koch’s postulates continue to be used successfully in all known human infectious diseases.
Louis Pasteur is a French microbiologist who is credited for…
Louis Pasteur is a French microbiologist who is credited for his MANY contributions to the field of microbiology. Which of the following is NOT an accomplishment of Louis Pasteur?