On April 19, 2011, Map Maker was added to the American version of Google Maps, allowing any viewer to edit and add changes to Google Maps. This provides Google with local map updates almost in real time instead waiting for digital map data companies to release more infrequent updates. 2012
The basic process of viral infection and virus replication occurs in 6 main steps. 1  Adsorption-virus binds to the host cell. 2  Penetration-virus injects its genome into host cell. 3  Viral Genome Replication-viral genome replicates using the host's cellular machinery.
Function. The use of RNA in retroviruses is for the replication of the viral genome. The viruses use reverse transcriptase to create DNA in the cell's cytoplasm. The DNA is then incorporated into the host cell's nucleus and DNA.After the viral genes are incorporated into the host's DNA, the normal cell processes transcribe the protein's necessary for viral replication.he viruses use reverse transcriptase to create DNA in the cell's cytoplasm. The DNA is then incorporated into the host cell's nucleus and DNA. After the viral genes are incorporated into the host's DNA, the normal cell processes transcribe the protein's necessary for viral replication.