Reverse transcriptase is characteristic of retroviruses, including HIV (human immunodeficiency virus), the virus responsible for AIDS (acquired immunodeficiency syndrome). All retroviruses encode a polymerase enzyme in their pol gene that is both necessary and sufficient for the replication of their RNA genomes.
PDO positive phase global pattern. The Pacific Decadal Oscillation (PDO) is a robust, recurring pattern of ocean-atmosphere climate variability centered over the mid-latitude Pacific basin.
The Pacific Ocean. The Pacific Ocean is the largest of the Earth 's oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south and is bounded by Asia and Australia in the west and the Americas in the east.he first contact of European navigators with the western edge of the Pacific Ocean was made by the Portuguese expeditions of Antonio antÃ³nio De abreu And Francisco serrao serrÃ£o To The maluku islands, in 1512 And Ãlvares 'jorge alvares Ã¡lvares s Expedition to southern, china in 1513 Both ordered By. afonso de albuquerque