the histories of several nations consist of legends and myths. the world myths seem similar in many cases, although, they sometimes oppose each other. tragedy is one of amazing topics in mythological discusses. this essay tries to analyze the tragedies of infanticide and patricide. there is a predictor in such tragedies and the fate will always go on his foretelling. nothing can prevent or chan...

Early development occurs in a highly organized and orchestrated manner and has long attracted the interest of developmental biologists and embryologists. Cell lineage, or the study of the developmental differentiation [4] of a blastomere [5], involves tracing a particular cell ( blastomere [5]) forward from its position in one of the three germ layers [6]. Labeling individual cells within their...

The maintenance of cell fate is important for normal development and tissue homeostasis. Epigenetic mechanisms, including histone modifications, are likely to play crucial roles in cell-fate maintenance. However, in contrast to the established functions of histone methylation, which are mediated by the polycomb proteins, the roles of histone acetylation in cell-fate maintenance are poorly under...