Enzymes used in PCR. Several types of thermostable DNA polymerases are available for use in PCR, providing a choice of enzymatic properties, see table DNA polymerases used in PCR. Taq DNA polymerase, isolated from the eubacterium Thermus aquaticus, is the most commonly used enzyme for standard end-point PCR.
Symbolic Frame. A collection of media artifacts that represent principles, components, and assumptions of the symbolic/cultural frame. Yes, academics and student achievement are important to any school. However, some school leaders believe that building a school culture is just as important.
A symbol is a person, place, action, word, or thing that (by association, resemblance, or convention) represents something other than itself. Verb: symbolize. Adjective: symbolic. In the broadest sense of the term, all words are symbols. (See also sign.) In a literary sense, says William Harmon, a symbol combines a literal and sensuous quality with an abstract or suggestive aspect (A Handbook to Literature, 2006) In language studies, symbol is sometimes used as another term for logograph.