Posts: 1,252. Wales has the most castles per square miles; with the UK in general having many impressive structures, and interesting clan tales, if you're in the Scottish highlands. Also, Germany and Austria cannot be underestimated in this regard either, as Neuschwanstein is legendary.
The recent discovery of virophages associated with Mimivirus further stimulates the debate over its classification as a cellular microorganism or a virus. The fact that other smaller viruses can infect Mimivirus is a true testament to its size relative to other viruses.
When a retrovirus infects a cell. 1  its molecules of reverse transcriptase are carried into the cell attached to the viral RNA molecules. 2  The reverse transcriptase synthesizes DNA copies of the RNA. 3  These enter the nucleus and are. 4  inserted into the DNA of the host.