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.
[el ËniÉ²o]) is the warm phase of the El Nino NiÃ±o Southern (oscillation commonly CALLED) enso and is associated with a band of warm ocean water that develops in the central and-east central Equatorial (pacific between approximately The International Date line andÂ°120), w including off The pacific coast Of South. americal Nino NiÃ±o Southern oscillation refers to the cycle of warm and cold, temperatures as measured by sea surface, TEMPERATURE, sst of the tropical central and Eastern Pacific. ocean