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1. What is the significance of Rf(relative to front) values? What information can be deduced about the molecules separated by paper chromatography, assuming that you know nothing about each molecule except where it was extractedfrom?2. Based on your results, what are the optimum wavelengths of light for absorptionby each pigment (hint: look for spikes in the spectrum)? How do theresults compare to the predictions you made? Do your findings correspond with those noted in the literature?3. If you were to use an aquatic plantfor your starting material, what would you expect to see in terms of pigments and absorption spectra, incomparison to your observed results from spinach? Explain.
Occasionally an asteroid will break into fragments due to a collision. These fragments can leave the asteroid belt and some even make their way to Earth.
effects on the human body of taking chemical substances to enhance performance improve health or address specific
Identify three organism base on below result i already perform an acid fast staining and it demonstrate that a gram negative cocci.
Sherman is a 65-year-old, sedentary male with heart failure. He weighs 200 lb and is 5’8” tall. He is referred to you by his cardiologist who would like him to begin exercising.
Critically discuss three of the test systems used to study the effects of a toxicant on chromosomes, describe each test system, and discuss one advantage or disadvantage of that particular test system.
q1. explain the process of dna extraction?what is the function of a restriction enzyme?for what purpose is gel
According to biochemical tests and oxygen usage, how would you identify and classify, respectively, the following microbes.
In the F2 generation, how many genotypic classes are possible from a trihybrid cross of heterozygotes in Determine which the genes involved show complete dominance?
He hopes this will slow the evolutionary development of BT resistant insects. Which seed variety must he use the 10 percent of his field that is not planted with BT 123 seeds.
It is more chemically correct to refer to reduction as the addition of electrons. Provide an example of a reduction reaction performed by cells in which hydrogen is not added to the reduced compound.
A porcupine eats 3,000 J of plant material. 1,600 J is indigestible and is eliminated as feces. 1,300 J are used in cellular respiration. What is the estimated production efficiency of this animal.
Define membrane potential (Vm) and sodium equilibrium potential (ENa). Which of these, if any, changes during the course of an action potential?
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