Reverse transcriptases are enzymes encoded in retroviruses viral genome. The enzyme is responsible for transcription of the viral RNA to produce a dsDNA that can be inserted into the host genome.
Pacific Ocean Basin. The Pacific Ocean is bounded on the east by the North and South American continents; on the north by the Bering Strait; on the west by Asia, the Malay Archipelago, and Australia; and on the south by the Southern Ocean.
1 Mackenzie Basin -- An intermontane basin in the Mackenzie and Waitaki Districts, near the centre of the South Island of New Zealand. 2  Qinghai-Tibet Plateau -- Largest intermontane plateau in the world; covers 2.2 million square kilometers and averages 4,000 metres above sea level.