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The following table shows several bacterial strain lac operon genotypes (some are partial diploids). a) Fill in the blanks in the “lactose absent” and “lactose present” columns in this table. (+) means significant levels of active ß-galactosidase enzyme can be detected. (–) means no significant levels of active ß-galactosidase enzyme. […]

Recent scientific and public policy discussions have focused on some natural and man-made substances, external to the body, and whether or not these substances interact with the endocrine system. The topic of “endocrine disruptors” is being popularized in media reports and discussed at scientific conferences. Read the following article and […]

1. What the last definition of pasteurization according to FDA (2005). 2. List 20 antimicrobials used in food manufacturing and specify the maximum allowance of each one in food. 3. What are bacteriocins, list 5 of them and provide examples of applications in foods. 4. List 5 natural antimicrobials used […]

We will spend a great deal of time in this course exploring the structure, function, and physiology of proteins, often ignoring the intricate, highly regulated processes of transcription and translation that produce them! The purpose of this problem set (probably a review for most of you) is to consider the […]