Restriction enzymes, also known as restriction endonucleases, are enzymes that cut a DNA molecule at a particular place. They are essential tools for recombinant DNA technology. The enzyme scans a DNA molecule, looking for a particular sequence, usually of four to six nucleotides.
RI Weather - The Climate on Rhode Island. Rhode Islands climate is humid and temperate and experiences the full extent of the four seasons. They dont really have a measurable dry or rainy season but rainfalls are spread evenly through the course of a year. Rhode Islands experiences its warmest weather from April until October.
1 Rhode Island Annual Precipitation Average - 47.98, 13th wettest in the U.S. 2  Rhode Island Tornado Average - 0.1 per year - 49th most in the U.S. 3  Largest reported Tornado in Rhode Island from 1950-2011, 8/8/1986 - 1,000 yards / .56 miles wide. Average time of occurrence of reported Tornadoes in Rhode Island from 1950-2011 - 2:41 pm. 2  Rhode Island Annual Lightning Density - 2.4 flashes per square mile - 42nd highest in U.S. 3  Record Driest year in Rhode Island from 1895-2012 - 1965, avg precipitation 27.59 inches.