A scientist is studying a species of gopher found in North America.  Population X lives in an area with hard packed soil, Population Y lives in an area with loose soil, and Population Z lives in an area with both hard and loose soil.   The gophers use their claws to dig […]

Puromycin is a powerful inhibitor of protein synthesis. It is an analog of the 3’ end of aminoacyl tRNA. When puromycin is added to a cell-free system containing all the necessary machinery for protein synthesis, incomplete polypeptide chains are released from ribosomes. Each such chain has py y uromycin covalently […]

You have two flies that have the following traits. The female fly is dominant homozygous for red eyes and she has a rate immune deficiency for which she is recessive homozygous, having one allele on each X-chromosome. The male fly has recessive homowzygous white eyes and does not have a […]

Here is your opportunity to dream! Choose a vacation destination anywhere in the world (to which you must fly) for a two week trip (assume you have vacation time from work to take the trip) that you would like to take exactly ten (10) years from today. This can either […]