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1. Robert, a smoker, is 52 years old. He has elevated blood pressure, in part, due to an elevated erythrocyte count. Knowing that smokers often have reduced plasma O2 levels, explain in detail (in a paragraph) why his erythrocyte count is elevated.
1-a. One treatment for hemolytic disease of the newborn is the slow replacement of the newborns blood. The replacement blood must be Rh^(-) even though the infants' blood is Rh^(+). Why?
1-b. Helen has hepatitis, which disrupts liver function. List four symptoms that she might experience based on the roles of the liver relative to the blood. Explain the basis for the symptoms as they relate to liver function.
Hershey and Chase experimented with radioactively labeled phosphorus and sulfur to determine that DNA and not protein is the genetic material.
Susie needs a blood transfusion. She has type O blood. Her brother has type A blood. She asks if she can use his blood. What is the doctor's response?
The trait for short, stiff hair is recessive to long, furry hair, & purple color is recessive to black color. A purple furry female is crossed to black short hair male.
Two of the embryonic sections differentiate resulting in 5 sections to the brain. The thalamus as a part of diencephalon develops from which initial embryonic brain section? (note there are three embryonic sections from which five sections diverge..
Describe an important difference between an iron-sulfur protein, and a Rieske protein concerning the covalent bonding of these iron-sulfur clusters with their respective apoproteins.
A researcher lyses a cell that contains nucleic acid molecules and capsomeres of tobacco mosaic virus (TMV). The cell contents are left in the covered test tube overnight. The next day this mixture is sprayed on tobacco plants. Which would be expecte..
The signaling mechanisms used by a steroid-hormone receptor and by an ion channel linked receptor have very few components. Can either mechanism lead to an amplification of the initial signal? If so, how? Ideas are included.describe an amplificati..
CC DD and cc dd individuals were crossed and hte F1 generation was backcrossed to get cc dd parent. 903 Cc Dd, 897 cc dd, 98 Cc dd. c and d are 10 m.u apart.
what is the name for the spores at the end of hyphae.
The KM of a Michaelis-Menten enzyme for a substrate is 1.0 x 10-4 M. At a substrate concentration of 0.2 M, νo = 43 μM x min-1 for a certain enzyme concentration. However, with a substrate concentration of 0.02 M, νo has the same va..
Joshua Ledergerg said, "Our only real competition for domination of planet remains the viruses." In what respect might you make a similar argument about insects.
Consider the three major classes of biologically important molecules: proteins, lipids, and nucleic acids. Which steps of the miniprep procedure act on proteins?
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