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.
Global Oscillations Network Group. (Redirected from Global Oscillation Network Group) The Global Oscillation Network Group (GONG) is a community-based program to study solar internal structure and dynamics using helioseismology. Six solar observatories are involved, with the intention of achieving almost unbroken observation of the Sun.