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Question: Assume you are purifying a protein on a weak cation exchanger (pH 7.5) and it comes off at 300mM salt. predict what salt concentraiton (lower, same, higher) the protein would come off if you used a strong cation exchanger. Explain the logic behind your prediction in terms of the differences between a weak and strong exchanger.
Think about the presence of hemoglobin in the catheter bag. What symptom would this loss of hemoglobin most strongly and immediately be linked to in the patient?
Illustrate the texture and arrangement of the lungs of the cat. If you were asked to create a karyotype from the chromosome spreads you made from HeLa cells, list materials you could use and describe how you would create the karyotype.
There is a population of 100 frogs. Twenty are heterozygotes, 30 are homozygous recessive, 25 are homozygous dominate. What is the frequency of the dominate allele?
Which of the following is the most posterior group of axial muscles? Muscles of the shoulder girdle. Muscles of the head and neck. Muscles of the pelvic floor
Assume your professor handed you a test tube with 3.0 ml of an E.coli culture in it and told you to make a 10^(-3) dilution of the entire culture. Describe how you would do it.
Consider the HIV enzyme called protease. The amino acid residues at the active site are highly hydrophobic. In designing a drug that would bind to the active site and jam it, researchers should use which sort of molecule.
What are genotypes of the adult that were crossed. 0 percent of a population died from sunburn, of the 10 percent who died 10 individuals were albino and the rest were split evenly between heterozygous (Gg) and dominant individuals (GG). So my questi..
Describe how structural modification helped the plant adapt to its environment. Assure the plant you select is an Angiosperm. For example, plants like the mosses, pine trees, and ferns are not the Angiosperms.
Eye color is expressed thrugh two genes A and B. Dark brown eye color, A, is dominant over lighter brown a. Eye pigment, B, is dominant over lack of eye pigment, b.
A cell biologist cautiously measured the quantity of DNA in grasshopper cells growing in cell culture. Cells examined throughout the G2 phase of the cell cycle contained 200 units of DNA. What would be the quantity of DNA at G1 of the cell cycle in o..
Diversity in tropical regions is generally greater than at high latitudes. Explain two different hypotheses that propose the mechanism for this pattern that remains a biological mystery
Determine which of the below are types of analyses that can occur once an entire sequence of a genome is known?
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