Titlebook: Irreversibilities in Quantum Mechanics; Benjamin Fain Book 2002 Springer Science+Business Media Dordrecht 2002 Vibration.chemical physics.

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caused by DNA differences) is rare and often unstable and thus plays a small role in plant improvement. Our thesis has remained unchanged, but we supplement this text with additional examples, and we highlight those rare situations where pure alleles or facilitated epigenetic alleles (alleles that a

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histone families H2A, H2B, H3, and H4 in higher plants. For each family, canonical histones and their variants will be described emphasizing their evolutionary origin and the roles they play in different chromatin-mediated processes. In the plant kingdom, the core histones families have diversified

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c regulation and heterosis in model and crop plants, including the potential for DNA methylation, histone modification and small RNAs to influence heterotic effects in F1 hybrids. Overall, we assess some opportunities and challenges for epigenetic research to advance the molecular understanding of h

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ation of the modified residue. Here we discuss the most recent findings about the roles of histone H3 phosphorylation, the proteins involved in phosphorylating particular residues and the mechanisms by which this modification results in a particular gene expression state. The differences and similar

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sm, either by inhibiting their translation by binding at the 3.-untranslated region or degrading their mRNA messages by binding to their coding regions. These “genetic dimmer switches” are vital molecular program controls, exerting direct impact on target genes involved in cellular signaling pathway

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mportant mechanisms that regulate the expression of genes and epigenetic control has also been shown to play an important role in cellular senescence. Our current insights on telomerase control by epigenetic processes in cellular senescence are reviewed in this chapter.

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Book 2002 for the reader with knowledge of theoretical physics (especially quantum mechanics) at university level. This book is based on the courses of lectures given at the Chemistry Department of Tel-Aviv University.

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