They are sequences of mRNA that can move around in the genome. They exist in corn, but are not found in the human genome. They are the most abundant type of repeat in the genome. All of the above are true regarding transposons.
Averages for San Juan in November. 1  The mountainous island of Puerto Rico in the northeastern Caribbean enjoys high temperatures all year round. 2  November sees temperatures of 21 to 30 degrees celsius - unimaginable for November back home in the UK.
Surrounding waters moderate island temperatures and produce a typically mild maritime climate. Nearby mountain ranges create a rain shadow effect, causing the San Juan Islands to receive significantly less rainfall than is typical for western Washington. Relatively warm moisture-laden winds blow in from the Pacific Ocean.