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The purity of cytochrome c can be evaluated by the ratio of the molar extinction coefficient (129.1 mM-1cm-1) at 416 nm of the reduced cytochrome c and the molar extinction coefficient (23.2 mM-1cm-1) at 280 of the oxidized cytochrome c. You extracted cytochrome c from yeast in the laboratory and after running UV spectra for the reduced and oxidized cytochrome c you had absorbance of 1.28 and 0.307 units respectively.
(i) What is the percentage of cytochrome c from your experiment?(ii) If you used a 1 cm cuvette, what is the concentration of your cytochrome c?
Compute the change in energy of an atom that emits a photon of wavelength 2.21 meters. (Planck's constant is 6.626 x 10-34 joule seconds; the speed of light is 2.998 x 108 m/s)
Recessive mutant alleles of an x-linked gene in Drosophila, crossveinless, prevent the development of supporting structures in the wings.
Tell me something about parasites. what are they? where are parasites mostly found in the United States and what are some causes of parasites? any diseases? can you please give me 2 paragraphs on this and cite any references you use. the reference..
In maize, a dominant allele (A) is essential for seed color as opposed to colorless (a). Another gene has a recessive allele (w) which results in waxy starch, as opposed to normal starch (W).
Eukaryotic cells are more complex than prokaryotic cells. Explain their differences, functions and the composition of each including how genetic material is replicated.
Such a condition is frequently accompanied by diarrhea, which causes a loss of body water. On the basis of what you have learned about osmotic water flows, describe why diarrhea may occur.
Humans have quite a few instances of suboptimal design and evolutionary quirks. Like most animals, we vestigial structures things that evolved for specific reason at one point in our evolution,
Suppose that the proton motive force calculated for a bacterial cell is -187 mV. If the change in pH at 25 degrees Celsius is +0.1 (2.3RT/F or Z=59), Determine the membrane potential?
Purine biosynthesis is allowed to take place in the presence of [N15]aspartate, and the newly synthesized GTP and ATP are isolated. What positions are labeled in the two nucleotides.
Gel filtration column was calibrated with blue dextran, its elution volume found to be 17.4 mL. Then, unknown protein and BSA were ran through the same column and eluted in 43 mL and thirty-six mL correspondingly.
Suppose that you did observations of Gram stained bacteria at TM 400x and TM 1000x. Which set of observations most closely matched the expected results for cell morphology.
A population of mice can have either black (B) or white (b) fur and long (L) or short (l) tails. Suppose if this is the gamete pool for the parental generation, what is the expected frequency of B/l:b/l zygotes in the next generation,
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