It is for this reason that is referred to as a complementary DNA or cDNA. Though there are numerous processes for synthesizing cDNA, the best way of doing so is by using mature or fully spliced mRNA. This is usually done by using the enzyme reverse transcriptase.
Ammonia is used as refrigerant prominently in the refrigeration systems of food industry like dairies, ice creams plants, frozen food production plants, cold storage warehouses, processors of fish, poultry and meat and number of other applications.
WHAT IT IS. Refrigeration is the achievement of temperatures below that of the local environment. The main purpose. of refrigeration is thermal conditioning (e.g. for food preservation or air conditioning), and the basic. apparatus is a refrigerator, a thermal machine producing cold. Other names for special types of. refrigerators are freezers, chillers, cryo-coolers, as well as the informal word fridge.