Bacterial DNA â a circular chromosome plus plasmids. The DNA of most bacteria is contained in a single circular molecule, called the bacterial chromosome. The chromosome, along with several proteins and RNA molecules, forms an irregularly shaped structure called the nucleoid.
What are the effects? If left untreated, syphilis can eventually cause damage to the brain, nerves, eyes, heart, blood vessels, liver, bones, and joints. In extreme cases it can cause difficulty coordinating muscle movements, paralysis, numbness, gradual blindness, mental illness, and even death. If you have syphilis and are pregnant, it can cause serious birth defects and stillbirth.
When syphilis has spread throughout the body, the person may have: 1  A fever of usually less than 101Â°F (38.3Â°C). 2  A sore throat. 3  A vague feeling of weakness or discomfort throughout the body.  Weight 1  loss. Patchy hair loss, especially in the eyebrows, eyelashes, and scalp hair.  Swelling of the lymph nodes.