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.
Frame - Physical objects. 1  Framing (construction), a building term known as light frame construction. 2  Framer, a carpenter who assembles major structural elements in constructing a building. 3  A-frame, a basic structure designed to bear a load in a lightweight economical manner.