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A recent Super Virus has swept our great nation and is threatening our human existence! It has been called to the attention of the president and he has issued an executive order to help combat this unprecedented situation. You will be working as an epidemiologist for the Centers for Disease […]

Q1. Clarify the principle and advantage of using a rapid identification system, as in the Enterotube. How would you rate the Enterotube system with conventional bacteriological procedures to identify members of the Enterobacteriaceae family? Why with reason? Q2. A phenotypically normal woman is known to have the X-chromosome constitution gd […]

Q1. Bacteria are grown in 15N (heavy) medium and next transferred to 14N (light) medium and allowed to replicate for 1 generation. The DNA is consequently isolated and centrifuged in a CsCl2 gradient to yield what type of gradient band(s)? Q2. The Mad Scientist’s Death-Ray Imagine that a mad scientist […]

Please read Chapter 12 of What is Life? A Guide to Biology before beginning this lab. The purpose of this lab exercise is to demonstrate that plants are in our environment and there is diversity among these plants. There are several different groups of plants and four different groups are […]