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Replication general principle

The DNA molecules in eukaryotic cells are considerably larger than those in bacteria and are organized into complex nucleoprotein structures (chromatin p. 938). The essential features of DNA replication are the same in eukaryotes and prokaryotes, and many of the protein complexes are functionally and structurally conserved. However, some interesting variations on the general principles discussed above promise new insights into the regulation of replication and its link with the cell cycle. [Pg.964]

Experimental design depends on the study objective, but there are a few general principles that apply to all experiments. Perhaps the major issues are making sure that there is sufficient replication and avoiding the influence of confounding factors. There are also some special considerations and issues related to the design of two-channel assays, which are described below. [Pg.649]

One limit to this beautiful chemistry hes in the requirement of selfcomplementarity of the self-replicating sequences. The more general case of a template working by complementarity was also investigated by von Kiedrowski s group (Sievers et al, 1994). As noted by Burmeister (1998), the underlying principle in this case is a cross-catalytic reaction in which one strand acts as a catalyst for the formation of the other strand. This is illustrated in Figure 7.6. [Pg.136]

The central dogma of molecular biology, showing the general pathways of information flow via replication, transcription, and translation. The term "dogma" is a misnomer. Introduced by Francis Crick at a time when little evidence supported these ideas, the dogma has become a well-established principle. [Pg.922]

In recent years much attention has been given to the application of fractal analysis to surface science. The early work of Mandelbrot (1975) explored the replication of structure on an increasingly finer scale, i.e. the quality of self-similarity. As applied to physisorption, fractal analysis appears to provide a generalized link between the monolayer capacity and the molecular area without the requirement of an absolute surface area. In principle, this approach is attractive, although in practice it is dependent on the validity of the derived value of monolayer capacity and the tacit assumption that the physisorption mechanism remains the same over the molecular range studied. In the context of physisorption, the future success of fractal analysis will depend on its application to well-defined non-porous adsorbents and to porous solids with pores of uniform size and shape. [Pg.5]

Even if the benchtop assay appears a suitable starting point for direct automation-compatible HTS assay development, it behooves the assay development team to obtain starting material from the assay provider and to replicate, at least manually, that the assay performs according to the assay provider s protocol. Table 4 provides a comparison of some of the mechanical and technical parameters that need to be adjusted in the process of adapting a benchtop assay into an HTS (automatable robotic) format. The general guidelines and practical principles are as follows ... [Pg.67]


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