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Question: Liposomes are promising molecules in gene transfer technology because of their similarity to cell membranes and their charge interactions with negatively charged DNA. Estimate the charge on the outside surface of a liposome of diameter 1 um. Suppose a typical phospholipid head has a diameter of 1 nm and carries a charge of one proton (1.6021 x 10^-19 C). Assume that the surface of the spherical liposome is comprised of phospholipid heads packed together as tightly as possible in a configuration known as hexagonal packing, which minimizes the inevitable vacant space that occurs when circles pack against one another.
What does this tell you about the physiological importance of hemoglobin's sigmoidal oxygenbinding curve. Which line represents the bag with the maximum initial concentration of sucrose.
The following recombination frequencies were found for four (A, B, C, and D) on the same chromosome; between genes A and B - 45 percent, between genes C and D- 10 percent,
Bradford Assay was performed with samples in triplicate. I got the standard curve and using three abosorbance from the plate reader for the samples and then I extrapolated the protein samples.
A different walnut rooster was crossed to a rose hen, and all the progeny were walnut. What are the probable genotypes of the parents.
Assume y ou are analyzing a dominant allele in fruit flies that mutates to a recessive allele at the relatively high rate of 10 -6 per generation.
To demonstrate that you understand the molecules of life you will be creating and explaining the following as models.
Explain a cost to C4 photosynthesis in moist, cool conditions and why C3 plants are often CO2 limited at high temperature.
Discuss the main steps which involves in triggering Angiogenesis by VEGF. Provide few examples of angiogenesis inhibitors.
Suppose if we had a population of 1000 individuals, how many would be feebleminded? How many would be carriers for feeblemindedness? Is mitochondrial DNA testing based on valid scientific theory?
Explain the circuitry and function of the cerebellum. Next, explain one of the following: a trained baseball player who is interfering with his swing by over-thinking it,
A profressor in a second-term calculus course wants to determine whether the year in college has any effect on the performance of his students on their final exam.
While two monohybrid round squashes are crossed, the offspring ratio is ¼ flat, ½ oblong, ¼ round. Squash shape is therefore controlled by incomplete dominance. What offspring ratio would you expect from a cross between a plant with oblong fruit and ..
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