C) Bradford\'s Reagent & testinyg 2. The titration curve of an amino acid is sho

Question

C) Bradford's Reagent & testinyg 2. The titration curve of an amino acid is shown to the right. Which of the following could be the identity of the amine acid in question? A) Histidine B) Glutamate D) Arginine . What is the dominant charge on the amino acid shown in the titration curve at pH 7? A) 0 B) +1 c)-1 D) Need more information You have acquired a sequence of nucleotides that you want to compare to existing sequences to find similarities. How do you do this? A) Titration B) Jmol C) UV-Vis When isolating casein from milk, why is the glacial acetic acid added? A) To dissolve the whey protein so that only casein is left B) To adjust the pH to casein's pl. allowing the casein to clot and precipitate C) To separate the casein from the fat present in milk by dissolving the fat D) To prepare the milk for centrifugation Which of the following is NOT a test for proteins or amino acids? B) Million Test C) Fehling's Test D) Ninhydrin Tes

Explanation / Answer

1.Arginine

2.zero

3.Acetic acid is added so as to adjust pH to casien isoelectric point and allow it to precipitate

4.The UV-Vis cannot accurately measure absorbances higher than 1

5.Gel electrophoresis uses charge for seperations of DNA fragments

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