This is a big hint about one of the differences between these two cell types. Prokaryotic cells have no nuclei, while eukaryotic cells do have true nuclei. This is far from the only difference between these two cell types, however. A eukaryotic cell contains a number of chromosomes; a prokaryotic cell contains only one circular DNA molecule and a varied assortment of much smaller circlets of DNA called plasmids.. 2  The smaller, simpler prokaryotic cell requires far fewer genes to operate than the eukaryotic cell.
Most women and men with chlamydia do not have symptoms. The time between exposure to chlamydia and the start of symptoms-the incubation period-may range from days to months. If symptoms appear, it is usually 1 to 3 weeks after sexual contact with an infected person.
Chlamydia is a sexually transmitted disease (STD) that is contagious. Chlamydia bacteria cause the most common STD in United States.Approximately 3,000,000 women and men become infected every year. Chlamydia is most common among women and men under the age of 25.herefore, they do not know they have the disease. The incubation period for chlamydia is quite variable and may range from days to months after the initial exposure. The average time from exposure to the development of symptoms is usually about one to three weeks after sexual contact with an infected person.