PCR (Polymerase Chain Reaction). is a revolutionary method developed by Kary Mullis in the 1980s. PCR is based on using the ability of DNA polymerase to synthesize new strand of DNA complementary to the offered template strand.CR (Polymerase Chain Reaction). is a revolutionary method developed by Kary Mullis in the 1980s. PCR is based on using the ability of DNA polymerase to synthesize new strand of DNA complementary to the offered template strand.
Key categories. Distilled spirits are alcoholic beverages obtained by distillation of fermented mixtures. There are various types of distilled spirits or liquor such as whiskey, rum, vodka, tequila, and gin. These categories differ based on ingredients and method of distillation. For instance, rum is made from fermented and distilled cane sugar, whereas tequila is made from fermented sugars from the agave.
In line with traditional practice, The Scotch Whisky Regulations 2009 define five categories of Scotch Whisky: 1  Single Malt Scotch Whisky: A Scotch Whisky distilled at a single distillery. 2  Single Grain Scotch Whisky: A Scotch Whisky distilled at a single distillery.