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We did a lab with DNA standards. We made one to one solutions of onion DNA that we precipitated and a 4% NaCl soln. We measured the amount of DNA using spectrophotometers. When we boiled the solution before measurement, the NaCl precipitated. This made the solution cloudy and the absorbancy […]

In this module, we learn about the unhealthy and shallow depiction of “soul friendships” in mainstream films and literature: “Type soulfriends, or even worse “soulmate” into an internet search engine and some of the most syrupy aphorisms on friendship will be returned for your edification… the trouble with this sentimental […]

Q1. In the last few decades remarkable fossils have been discovered indicating that the ancestor of cetaceans (whales, dolphins, and porpoises) was a four-legged, terrestrial (land) mammal. Utilize darwin’s theory of evolution by natural selection to explain how a group of ancient mammals couple be the ancestors of a major […]

A 19 year old college student cuts his lower lip while saving and seek medical advice. Physical examination confirms a deeps tissue wound that exhibits the cardinal signs of inflammation. In response to collagen and other basement membrane proteins exposed at the site of injury, platelets release which of the […]