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.
Comparing the New 2012 USDA Planting Zone Map of Rhode Island to the outdated 1993 USDA Growing Zone Map one can see that Zone 6a, with an average low winter temperature of -10Â° F., is receding toward the Northwestern corner of the State of Rhode Island.