Mechanisms of embryonic stomach development

Mechanisms of respiratory innervation during embryonic development

During embryogenesis, the development of the respiratory tract is closely associated with the formation of an extensive neuronal network. While the topic of respiratory innervation is not new, and similar articles were published previously, recent studies using animal models and genetic tools are breathing new life into the field. In this review, we focus on signaling mechanisms that underlie i...

Cellular and molecular mechanisms in embryonic development

Uncovering the Genetic Mechanisms Driving Embryonic Development

Ali Shilatifard, PhD, the Robert Francis Furchgott Professor and chair of the Department of Biochemistry and Molecular Genetics, was the senior author of the study that explored the activation of Hox genes in early embryonic development. A new Northwestern Medicine study, published in Genes and Development, has identified two DNA elements crucial to the activation of a set of genes that drive t...

EPIGENETIC MECHANISMS UNDERLYING DIFFERENTIATION DURING MAMMALIAN EMBRYONIC DEVELOPMENT Gametogenesis

the DNA double helix, is organized into a complex chromatin structure with the assistance of histone and nonhistone proteins. As such, chromatin is the physiologically relevant form of eukaryotic genomes. While it is largely uncontested that different genetic compositions of individual species underlie their unique physiology and final morphology, chromatin provides an additional layer for dict...

effect of oral presentation on development of l2 learners grammar

this experimental study has been conducted to test the effect of oral presentation on the development of l2 learners grammar. but this oral presentation is not merely a deductive instruction of grammatical points, in this presentation two hypotheses of krashen (input and low filter hypotheses), stevicks viewpoints on grammar explanation and correction and widdowsons opinion on limited use of l1...