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.
For many philosophers, both ancient and modern, man is regarded as the representational animal or homo symbolicum, the creature whose distinct character is the creation and the manipulation of signs â things that stand for or take the place of something else.itchell says representation is an extremely elastic notion, which extends all the way from a stone representing a man to a novel representing the day in the life of several Dubliners. The term 'representation' carries a range of meanings and interpretations.