A prokaryote that differs from most other bacteria with respect to its very small size and obligates intracellular parasitism is:
a. Rickettsia.
b. Bartonella.
c. Calymmatobacterium.
d. Coxiella.
A
The organisms addressed in Chapter 43 are obligate intracellular bacteria or are considered either extremely difficult to culture or unable to be cultured. Organisms of the genera Chlamydia, Chlamydophila, Rickettsia, Orientia, Anaplasma, and Ehrlichia are prokaryotes that differ from most other bacteria with respect to their very small size and obligate intracellular parasitism.
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Fruits develop from _____
A) microsporangia B) receptacles C) fertilized eggs D) ovaries E) ovules
Imagine you have discovered a new species of bacteria. To begin your investigation of this organism, you run an assay on the total nucleotide content of the bacterial cells
If the cytosine content of DNA from the bacterial cells is 17%, what is the adenine content? A. 17% B. 34% C. 66% D. 33% E. It is impossible to calculate this number for eukaryotes.
The efficient phagocytosis of protein-coated pathogens is called:
A. optimization. B. opsonization. C. inflammation. D. complementation.
Crop plants modified to be resistant to insect damage produce Bt toxin from a (bacterial/fungal/synthetic) gene
What will be an ideal response?