Local Weather. Brewing tropical cyclone in Bay of Bengal won't bring heat relief to India. April 13, 2017, 9:40:41 AM EDT. A budding tropical cyclone in the Bay of Bengal is expected to target Myanmar, preventing India from welcoming any relief from the dangerous heat wave. Tropical depression to soak central Philippines Easter weekend. April 14, 2017, 7:00:42 AM EDT.
HIV is a retrovirus. HIV is an enveloped retrovirus. Each virus particle contains two copies of an RNA genome. The virus also has a number of enzymes: reverse transcriptase, integrase and viral protease. These molecules play an important role in making new copies of HIV and can be the targets of antiretroviral drugs.
Retroviridae is a family of enveloped viruses that replicate in a host cell through the process of reverse transcription. A retrovirus is a single-stranded positive-sense RNA virus with a DNA intermediate and, as an obligate parasite, targets a host cell.ithin the cell, reverse transcriptase creates a complementary strand of DNA from the retrovirus RNA and the RNA is degraded; this strand of DNA is known as cDNA (4). The cDNA is then replicated, and the two strands form a weak bond and go into the nucleus (5).