Chlamydia is a sexually transmitted disease that is caused by a bacterium called Chlamydia trachomatis.

Question

Which of these are characteristics of the infectious agent that causes chlamydia?

a
Unicellular organism that contains DNA
b
Non-living particle that contains DNA
c
Unicellular organism that replicates only inside of other organisms
d
Nonliving particle that replicates only inside of other organisms

Answer 1

Chlamydia trachomatis, the bacterium that causes chlamydia, has the following characteristics:

• It is a unicellular organism.
• It contains DNA.
• It replicates only inside of host cells.

Given these characteristics, the correct answer is:

c: Unicellular organism that replicates only inside of other organisms.

Options a and b incorrectly categorize the organism, while option d describes a virus rather than a bacterium.