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Repeat-unit-size rule

Exceptions to this repeat-unit-size rule (see Section 2.3) were found, however, even when the parental mitochondrial genomes carried the same ori sequence (compare the supppressivities of petites bl7/b20, bll/b7, a 1/7/8. f in/20 of Fig. 2.16 and the predominance in crosses of b7 over bll, of b over hp5, of b 13/1 over a-23/3 see also Rayko et al., 1988). This indicates that noncoding, intergenic sequences flanking ori sequences also play a role in the modulation of replication efficiency. Since in different petites such sequences differ in primary structure, size, and position relative to ori sequences, this modulation is likely to take place through an indirect effect on DNA and nucleoid structure (Rayko et al., 1988 see Fig. 2.21). [Pg.38]

There is no general rule relating the nucleophilic reactivity of cyclic monomer and linear polymer repeating unit, it depends on the nature of heteroatom and the size of the ring which affects the electronic structure of heteroatom. It is a common practice to estimate the order of nucleophilicities on the basis of basicities. Although it is only partly justified, this procedure enables semiquantitative comparisons of known pKa values whereas no universal scale of nucleophilicity exists. Some typical values of pKa for cyclic compounds and their linear analogs are given in Table 8 [99,100],... [Pg.479]

Certain aspects of permanent gels are comparable if they are analyzed on the basis of the cluster structure of the system. A cluster is a particularly constructed, inhomogeneously linked, multichain macromolecule of a size generally similar to that of most macromolecules studied isolated in dilute solution. As a rule, the cluster is internally very heterogeneous in structure and composition, but, overall, the cluster is the statistically similar repeating unit that builds up the gel. In swelling equilibrium, all parts of a cluster, but its periphery in particular, are in equilibrium with an excess of pure solvent medium. [Pg.5]

Generalize into properties, if possible, the examples where X is of a size equal to or less than some integer n, where n is the largest size where this leads to properties without recursion and without redundancy of information. Set m to A2 + d, where d is the decomposition decrement. The most useful generalization technique is the maximally repeated application of the replacing-a-constant-by-a-variable inductive inference rule to an example this often requires a subsequent specialization by introduction of a body to the resulting unit clause. [Pg.205]


See other pages where Repeat-unit-size rule is mentioned: [Pg.36]    [Pg.39]    [Pg.36]    [Pg.39]    [Pg.158]    [Pg.13]    [Pg.138]    [Pg.14]    [Pg.202]    [Pg.561]    [Pg.25]   
See also in sourсe #XX -- [ Pg.36 , Pg.38 ]




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