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.
San Juan weather essentials. As with almost all tropical destinations, any time of year is the best time of year to visit San Juan. There are no actual seasons, in that weather is warm and humid year round, and temperatures can be expected to reach the high 70s and low 80s (Fahrenheit) even in what is technically winter. The only thing travelers really need to take into consideration when planning a trip to San Juan is hurricane season.