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Assume that you have a stock solution of epinephrine at a concentration of 1mg/ml. Further assume that there are 20 drops/ml.
a. Calculate the number of drops of the stock solution that must be added to a smooth muscle bath containing 25 ml of Locke's solution so that the final concentration of epinephrine in the muscle bath will be 100 ?grams/ml.
b. Compute the dilution factor which describes the extent to which a single drop of stock drug solution is diluted when added to the smooth muscle bath.
find the amount of energy a mammal.
Kangaroo rats native to North American deserts have very efficient kidneys. They excrete an exceedingly small volume of highly-concentrated urine in order not to lose much water from the bodies.
The 2.1kb long insert was excised from the source DNA using NotI. The insert fragment has 2 SphI restriction sites. One of these located 1.3kb from 1 end of fragment and other is located 0.2kb from other end.
The tRNA in the E site will leave and migrate to its aminoacyl-tRNA synthetase d. where the tRNA will be recharged with the correct amino acid.
Several main types of animals are now extinct. A treasure trove of fossils from these unusual animals was found in the Canadian Rockies.
find which of the following describes the type of the reaction(s) catalyzed: condensation (carbon-carbon bond formation); dehydration (loss of water); hydration (addition of water); decarboxylation (loss of CO2); oxidation-reduction; sutrate-level..
A flowering plant has ten chromosomes in each cell in its roots. Discuss how many chromosomes will be in each cell of the leaves of the plant.
Assume the charge at the center is now increased to +9Q, while the charge at the surface of the conductor is changed to -13Q.
There are four main categories of molecules of life. Complete the table given by indicating, the name of each of the four categories of the molecules of life
Assume you have isolated C57BL6 trophoblast stem cells and have propagated them on MEFs with heparin. To test for the success of your culture protocol, you are injecting the cells into a C57BL6 blastocyst.
For an amino acid such as alanine, the major species in solution at pH 7 is the zwitterionic form. Suppose a pKa value of 8 for the amino group and a pKa value of three for the carboxylic acid.
What genetic basis of erminette pattern is suggested? How will you test your hypothesis. In brief compare the progress of an infectious disease through a well-immunized population with its progress during a poorly immunized population.
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