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.
Symbolic Frame Assumption: Events and processes are often more important for what is expressed than for what is produced. Their emblematic form weaves a tapestry of myths, heroes and heroines, rituals, ceremonies, and stories to help people find their purpose and passion (Bolman & Deal, 2008, p. 253).