Phenyl-Sepharose resin consiss of a phenyl group attached to a matrix of agarose. Suppose you need to use this chromatographic method to separate a mixture of polypeptides consisting of polyalanine, polyserine, polytryptophan and polylysine. Would you apply these polypeptides in a buffer containing high ionic strength or low ionic strength? […]

Assignment Instructions: 1. Discuss the function in detail of each of the following RNA polymerase II transcription factors. TFIIB TFIIE TFIIF TFIIH 2. What additional role does one of the subunits of TFIIH have during the initiation phase that involves other protein kinases? What is the end result? 3. Discuss […]

1. Explain why it is notable that Fts-Zproteins have been found in mitochondria andchloroplasts. 2. What is a hierarchical organization? And I need an example 3. What are the similarities and differences in the cell walls and cell membranes of gram positive and gram negative bacteria? 4. Explain why clinical […]

Bionic Human: Chapter 11 Assignment Stem cells and tissue engineering Differences Between Embryonic and Adult Stem Cells Embryonic stem cells can become ALL cell types of the body because they are pluripotent. Adult stem cells were originally thought to be limited to differentiating into different cell types of their tissue […]