The synthesis of 5-phosphoribosylamine from PRPP is
I. inhibited allosterically by ATP and GTP.
II. activated by PRPP via feed forward activation.
III. controlled by cAMP dependent phosphorylation.

A: I, II, III,
B: I, II
C: II, III
D: II only
E: III only

If 1.8 l of water is added to 2.5l of a 7.0 molarity koh solution, what is the molarity of the new solution

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Lab reagent, hypothesis test.a reference solution used as a lab reagent is purported to have a concentration of 5 mg/dl. six samples are taken from this solution and the following concentrations are recorded: (5.32, 4.88, 5.10, 4.73, 5.15, 4.75) mg/dl.these six measurements are assumed to be an srs of all possible measurements from solution.they are also assumed to have a standard deviation of 0.2, a normal distributin, and a mean concentration equal to the true concentration of the solution.carry out a significance test to determine whether these six measurements provide reliable evidence that the true concentration of the solution is actually not 5 mg/dl.