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.
As with most places some years are wetter and some drier, but overall the San Juan Islands receive about 1/2 the rain as Seattle and experience an average of 247 sunny days per year. Summer temperatures are generally in the low to mid 70s and winter temperatures in the high 30s or low 40s.