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Assume you leave a culture inthe 37 C incubator with out tryptophan for a week instead of overnight like you planed. to your surprise the culture has shown some visible growth so you reinoculate from that flask into a new flask and see no growth in new overnight culture as […]

Question: Liposomes are promising molecules in gene transfer technology because of their similarity to cell membranes and their charge interactions with negatively charged DNA. Estimate the charge on the outside surface of a liposome of diameter 1 um. Suppose a typical phospholipid head has a diameter of 1 nm and carries […]

Introduction to the Activity: In 1996 history was made when a sheep named Dolly was the first animal to be successfully cloned (Wilmut et al. 1997). Since then there have been numerous advancements in the science of cloning, resulting in the development of other clones from horses, cats, and mouse (AMA-ASSN). […]

1. While fishing for King crab in Alaska, a man falls overboard into the Bering Seas 33 degree Fahrenheit water. He is rescued after only one minute in the water, but already has moderate hypothermia. Explain the mechanisms involved in the development of hypothermia, and explain the pathogenesis of the […]