Question 24 Chlamydia is a sexually transmitted disease that is caused by a bacterium called Chlamydia trachomatis Which of these are characteristics of the infectious agent that causes chlamydia? Unicellular organism that contains DNA Unicellular organism that replicates only inside of other organisms Non-living particle that contains DNA Nonliving particle that replicates only inside of other organisms

Answer 1

The characteristics of the infectious agent that causes chlamydia, which is Chlamydia trachomatis, include:

• Unicellular organism that contains DNA
• Unicellular organism that replicates only inside of other organisms

Chlamydia trachomatis is a bacterium, which means it is a unicellular organism that has DNA. However, it is also an obligate intracellular pathogen, meaning it must replicate inside the cells of a host organism. The other options you provided describe non-living particles (such as viruses) and do not apply to Chlamydia trachomatis.