Which of the following is a facultative, rather than obligate, intracellular pathogen?

A. Rickettsia
B. Brucella 
C. Chlamydia
D. All of the choices are correct.


Answer: B

Biology & Microbiology

You might also like to view...

DNA fragments can be separated in gel electrophoresis because

A. nitrogenous bases have a net negative charge. B. phosphate groups have a net negative charge. C. nitrogenous bases have a net positive charge. D. phosphate groups have a net positive charge.

Biology & Microbiology

Species interactions within a community rarely involve only two species

Indicate whether the statement is true or false

Biology & Microbiology

A genomic library is a collection of ________ that contains DNA fragments representing most, if not all, of the genome of an organism

Fill in the blank with correct word.

Biology & Microbiology

During what step of glycolysis are two ATP molecules required?

A. Oxidation B. Acetyl-CoA formation C. Pyruvate formation D. Glucose priming E. Cleavage and rearrangement

Biology & Microbiology