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A purified, active preparation of carbonic anhydrase was submitted to native polyacrylamide gel electrophoresis at alkaline pH. Three major bands were observed after staining. The same preparation of protein was denatured and submitted to SDS-polyacrylamide gel electrophoresis. One band was observed after staining. Explain these results.
How are carbohydrates important in RNA and DNA. What is their function in body organs and nerve cells? Do you know of any other functions?
Frank found himself in the midst of an ethical dilemma at work, and was using an ethical decision-making matrix, to address his work and personal values. Frank was most likely in which phase of the Ethical Decision-Making Framework.
Assume you and your lab partner have made the following artificial membranes: Membrane made entirely of phosphatidylcholine with saturated 16-carbon fatty acids Membrane.
Question What causes cancer? Why is finding a cure so difficult? Why do certain drugs work for some people but not others?
A black guinea pig crossed with an albino guinea pig produce 12 black offspring. While the albino was crossed with a second black animal, 6 blacks and 6 albinos were obtained. What is the best justification for this genetic situation.
In rabbits, a series of multiple alleles controls coat color in the following way, C is dominant to all other alleles and causes full color. The chinchilla phenotype is du the the c ^ch allele,
The bacteria are allowed to grow overnight and are streaked on a plate using the technique that produces isolated colonies that are clones of the original. Samples of these colonies are then grown in four different media: nutrient broth plus ampicill..
For seedless vascular plants create a homosporous and heterosporous life cycle of a plant. Also label what structures are haploid and which are diploid as well as when meiosis and fertilization occur.
Explain how black and white pattern on the male siamese cat arises. If the oceans warm a few degrees, what impacts can you see on the landmasses, biologic community, and human populations? Are these positive or negative changes? Why with reason.
Dr. Don McPhail and his colleagues hypothesized that the existence of the benthic and limnetic sticklebacks is the result of allopatric speciation.
Which pair will have been likely to agree that strata such as those depicted here were deposited gradually over long periods of time by subtle mechanisms that are still at work?
What are the three major classes of molecules that function as hormones? Which are water-souble and which are lipid-souble.
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