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.
The Great Basin Desert is one of four U.S. deserts, occupying a large portion of Nevada, portions of California, Oregon and Idaho, and the western desert reaches of Utah.act Three. The Great Basin Desert exists because the Sierra Nevada and Cascade Mountains create a rain shadow, cooling Pacific Ocean air and stripping it of its moisture. The air then exits the mountains in a state dry enough to absorb moisture from the region on its far side, causing the desert conditions.