Several environmental stimuli, including glucose, can ultimately cause epigenetic modifications, which determine gene activation or repression by altering DNA accessibility to transcription factors [ 11, 54].
By a simple modification of the operator equation which determines the block-diagonalizing transformation one can obtain numerical infinite-order solutions, i.e. one can obtain the exact numerical solution for the separation of the pure electronic part of the Dirac spectrum.
The mutations, K27M and G34R/G34V, occur at positions in the histone tail that are critical for post-translational modifications involved in the histone code, which determines chromatin structure and gene expression.
Three generations of fibers have been developed by modification of their microstructures, which determine their stability over 1000°C.
It is quite certain that the ripening process involves cellular activities related to metabolic networks and to organelle modification, which eventually determine product quality.
The assay is sensitive to RNA degradation as well as chemical modifications, which both determine the length of an amplicon during PCR amplification.
Several epigenetic mechanisms have been suggested [ 54], including DNA methylation and histone modifications, which could determine or give a clear prediction of the future transcriptional state of the genome under the influence of environmental factors.
Among these factors are epigenetic marks, such as cytosine methylation and histone tail modifications, which help to determine and regulate chromatin structure and function including gene expression.
Methylation patterns were determined by bisulfite-treated modification, which converts unmethylated but not methylated cytosines to uracil.
Different parts of the genome carry different histone modifications, which in turn determine the level of compaction and transcriptional activity of different regions of the genome.
