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RNAse is an enzyme that cleaves the P--O^5' bond in RNA. it has two His residues in the active site. Suggest a plausible explanation why the enzyme activity changes when pH is increased or decreased from ~pH 6.0,
Choose all the true statements
a.) the RNAse reaction is an example of metal ion catalysis with a positively charged metalb.) both His residues are deprotonated at pH higher than 6.5c.) one His residue abstracts a proton from the substrate at pH 6.0, whereas the other denotes a protond.) there are two His residues, and both are deprotonated below pH 4.2e.) the substrate is affected by the change in pH, and is inactive (+ charged) when pH is above ~6.0
Suppose you have a light chain genome with 64V regions and 8J regions. If you had repeated attempts at recombination, how many dissimilar attempts would be made when the middle region of both V and J is the segment chosen at each recombination.
The trend in the U.S. is having children later in life than previous generations. What effects may this trend have on the incidence of late-acting dominant lethal alleles in the population.
compute how many molecules X and Y the cell contains at any time. Which molecule would be preferred for rapid signaling? Why?
At 45C, the vapor pressure of water for a glucose solution in which the mole fraction of glucose is 0.080 is 65.76 mmHG. Calculate the activity and activity coefficient of the water in the solution.
which nucleotide sequences represents complement to DNA
What is left-sided and right-sided heart failure? Which of these symptoms reflect left-sided heart failure and which reflect right-sided heart failure? Why with reasons.
Determine hich of the following situations has the greatest potential for observer bias in an experimental study?
explain The process by which the bacteria affect milk is outlined in text books, but the "meat" process seems to be glossed over.
how do the psysiological functions of human beings and other complex organisms reflect the basic functions of indiviual cells?
examine transcription, including such things as the location in the cell, transcription signals, products, chemical details, and/or the amount of chromosome involved.
Place these steps of the insulin signaling pathway in the correct order from insultin is secreted to glucose enters the cell. Place all eight steps. The abbreviation PIP2 is used for phosphatidylinositol
The overall reaction of aerobic respiration of glucose is summarized as.
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