Essays on Zipper

Transcriptional regulation of gene expression

Gene expression in eukaryotic cells is regulated at transcriptional, post transcriptional and translational levels (Tomizawa,  Lekstrom-Himes, and Xanthopoulos 17). Transcriptional control is the primary means of regulating gene expression. Eukaryotic transcriptional control functions at three levels: modulation of the activities of activators and repressors; variations in chromatin structure; and effect of activators and repressors on assembly of initiation complexes (Lodish et al. 368). Regulation of transcription initiation is the most widespread form of gene control in eukaryotes. However, in some cases, transcription may be attenuated and regulated at subsequent steps, such as during or after the transcription process (Cooper ...

The purpose of a marketing audit report is to enable an organization to analyze and evaluate the effectiveness of the marketing department relative to the use of alignment skills, processes, and systems because these processes affect the return on investment. Information revealed from this process can disclose the need for opportunities that can improvement the present marketing processes. As an example, if a company desires to achieve a higher performance level in its business, there will be the need to increase effectiveness while also improving the return on investment (Patterson, 2009). This could mean that the organization needs to ...