It has evolved into a myriad of forms by addition, loss, and modification of parts.
It is, however, not evident how the relatively minor morphological modification of part of that structure in the haplochromines [ 12] might function as an evolutionary key-innovation.
Another important finding of our studies is that interactions with the nucleobase and ribose can be additive, and thus the loss of binding energy from modification of part of the nucleoside can be compensated for by the gain of energy from modification of another part of the nucleoside.
The transfection efficiency and biocompatibility of cationic lipid gene carriers can be altered by modifications of the constituent parts of the lipids, specifically, the lipid backbone (often glycerol), the hydrophilic head group, and the interconnecting linker.
The central aim of On the Nature of Limbs is to argue that there indeed exists such a "predetermined pattern answering to the 'idea' of the Archetypal World... which archetype... is the basis supporting all the modifications of such part for specific powers" (pp. 2 3).
Nucleic acid extractions were conducted with the Promega SV Total RNA Isolation System [59], with slight protocol modifications (exclusion of part IV. E. steps 4, 5) to permit extraction of both genomic DNA and RNA.
Thus, modularity is considered a key feature of biological organization that allows the modification of certain parts of organisms with minor effects on other parts, thereby contributing to evolvability [ 3].
The degree to which the chromatin opens depends on chemical modifications of the outer parts of the histone molecules and on the presence or absence of particular nonhistone proteins.
Hard evidence that modifications of other body parts of cattle were done in prehistoric times by ancient African ethnic groups is difficult to obtain because soft tissue remains rarely endure at archaeological sites.
To account for modifications of symmetry in parts of different plants, an occurrence that could hinder the discovery of an evolutionary relationship, de Candolle introduced the concept of homology.
