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.
Two ammonia plants outside the United States were opened in 2006âa 400,000-ton-per-year plant in Egypt and a 680,000-ton-per-year plant in Iran.everal companies announced plans to build new ammonia plants in Brazil, Egypt, India, and Venezuela, which, if completed on time, would add 3.2 million tons of annual capacity by the end of 2009.