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.
Ammonia Products. In addition to using ammonia as a cleaning product, ammonia can be found in some glass and window cleaners, interior and exterior paints, and in urine (use caution when cleaning litter boxes, diaper pails, or toilet bowls).