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 frame may refer to any of the following: 1. In software, a frame is an edge or border that resembles a physical frame you would find around a picture. Frames are often used in word processing and graphic arts to help focus a viewer's attention. 2. In data or network communications, a frame is a data transmission unit with a header to indicate the beginning of a block of data and a trailer to indicate the end of it. 3. With a web page, a frame is a movable or non-movable portion of a web page that can make navigation easier and a way to bring other content from other sources into a page. A good example of this is the use of Internet advertising banners on a web page.