DNA is a helical, double-stranded molecule that bears the genetic code. During the replication of DNA, its two strands are separated from each other resulting in a configuration called the replication fork. The replication fork is comprised of two prongs wherein each prong is the single strand of DNA.
The earliest signs of an HIV infection are flu-like symptoms that include fever, rash, swollen lymph nodes, headache and fatigue, according to Mayo Clinic. These symptoms usually appear between 30 and 60 days after a person has been infected, and they may be mistaken for another viral infection. Keep Learning.
HIV symptoms. Within a month or two of HIV entering the body, 40% to 90% of people experience flulike symptoms known as acute retroviral syndrome (ARS). But sometimes HIV symptoms don't appear for yearsâsometimes even a decadeâafter infection. In the early stages of HIV infection, the most common symptoms are none, says Michael Horberg, MD, director of HIV/AIDS for Kaiser Permanente, in Oakland, Calif.