A tourist presented to a primary care health clinic complaining of malaise, fever, and headache. She has subsequently been diagnosed with Rocky Mountain spotted fever, a pathology caused by Rickettsiaceae. Which of the followed statements best captures a characteristic trait of Rickettsiaceae?

A. They are eukaryotic.

B. They have both RNA and DNA.

C. They have a distinct spiral-shaped morphology.

D. They are neither gram-negative nor gram-positive

Question

Biology

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29 August, 20:24

A tourist presented to a primary care health clinic complaining of malaise, fever, and headache. She has subsequently been diagnosed with Rocky Mountain spotted fever, a pathology caused by Rickettsiaceae. Which of the followed statements best captures a characteristic trait of Rickettsiaceae?

A. They are eukaryotic.

B. They have both RNA and DNA.

C. They have a distinct spiral-shaped morphology.

D. They are neither gram-negative nor gram-positive

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Answers (1)

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Jaylah Villarreal · Answer 1

Answer: They have both RNA and DNA

Explanation: Rickettsiaceae possess both nucleic acids RNA and DNA, this is a distinctive characteristics of the organism. They are pleomorphic organisms and are mostly gram-negative organisms.

Rickettsiaceae are infectious to arthropods therebygiving making them an intermediate host or carriers and human can be infected via biting from infected arthropods.