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.
Influence of El-Nino-Southern Oscillation on the Interannual Variability of tropospheric ozone in the northern midlatitudes. Journal Club MTG3: Ozone Interannual Variability. Interannual and decadal variability in zooplankton communities of the southeastern Bering Sea shelf. Past variability in Arctic marine systems.