This is known as enzyme digestion. On double stranded DNA the recognition sequence is on both strands, but runs in opposite directions. This allows the enzyme to cut both strands. Sometimes the cut is blunt, sometimes the cut is uneven with dangling nucleotides on one of the two strands.
Yet warm weather is a year round occurrence in San Diego. A day of 80 degrees can happen in any month but December. San Diego's nights are equally mild with an average of just ten nights a year when the thermometer doesnt drop below 70 degrees. Days per month in San Diego of at least 60, 70 or 80 Â°F.
Days of Hot Weather in San Diego. Despite its southern location, San Diego rarely gets hot. Temperatures over 100 Â°F are not normal there. Indeed, the city averages only one day a year when the thermometer reaches 90 degrees. Yet warm weather is a year round occurrence in San Diego. A day of 80 degrees can happen in any month but December.