Includes medical terms and definitions 3 oct 2005 (science biochemistry, chemistry) an additive effect is the overall biological two chemicals acting together which simple sum of genetic effects are contributions to final phenotype from more than one gene, tools.
Therefore, you want your refrigerator to be cold, but not so cold that it freezes things. The preferred temperature is somewhere between 35 and 38 degrees F (1.7 to 3.3 degrees C). Anything higher and foods will spoil too quickly (it also presents food poisoning problems, as described in several of the links below).
Ideal Refrigerator and Freezer Temperatures. The optimal temperature range for the refrigerator is 34 to 40 degrees Fahrenheit to keep food safe and unfrozen. If your thermometer reading is outside of this range after the temperature test, adjust the temperature settings.