Bigger size sample would result to better quality spectra compared to smaller sample with small size in ATR-FITR. O True O False
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- Question 15 While viewing a slide under the microscope, I can use 100 x lens directly. O True O FalseQuestion 5: The following experiment was done to separate plant pigments from spinach leaves. 4 3 Watch glass containing concentrated extract a. Fill in the information in the table below: Pigment 2 No. 1 Lost the sample Name Solvent Front Det up the chromatography chamber Allow the solvent to move up Color Olive Green Blue Green Yellow Yellow-Orange Sample apot Distance travelled (cm) 3 5.6 8.4 13.5 15 What is the name of this technique for separation of the pigments? Solvent From Pigment 4 0.2 Pigment 3 Pigment 2 Ratio factor (Rf) b. Write the equation and show the calculations to find out the Rf for pigment 3. Pigmen 1 0.37 0.9 n that the solvent used was non-polar, which of the pigments is the most polar?QUESTION 3 3.1. Regardless of the specificity and sensitivity of a test, if the test results cannot be reproduced, the value and usefulness of the test are minimal. Name and briefly discussthe three (3) factors that contribute to the variation between test results of assessing diagnostic and screening tests.
- QUESTION 11 Green Rf = 0.89 Red Rf 0.81 Blue Rf = 0.72 Yellow Rf = 0.77 Which colored pigment has the greatest affinity for the stationary phase? O yellow Ⓒred O green O blue* Question Completion Status: In what order will the following fragments in an ESI mass spec arrive at the detector? Answers are arranged from fir to arrive to last to arrive. I. 75 Da, 2+ II. 100 Da,3+ III. 150 Da,2+ IV. 200 Da, 4+ O II, I, IV, III O IV, II, III, I O I, II, III, IV O IV, III, II, I QUESTION 19 How many fragments will be produced after the following peptide is digested with trypsin? DNAFINGERPRINTING 1 O 2 O 4 0 3 QUESTION 20 70F Mostly coudy Click Save and Submit to save and submit. Click Save All Ansuers to sace all anwers Type here to searchQUESTION 1 What is 105 ng ml in: a. ug/ml b. mg 1 C. ug1 d. g/ul (Please list each answer on a separate line, beginning with the corresponding letter. Don't forget units for each answer!) For the toolbar, press ALT+F10 (PC) or ALT-FN+F10 (Mac). 14px E E YA BIUS Paragraph Arial 田 Bヨ田田用 国 田EEt o
- Question 44 Uncertainty of measurement is calculated to give the scientist wiggle-room in their results. O True O FalseMilligrams 47.0 milligrams = Multiple Choice 0.47 decigrams 4.7 centigrams 0.047 grams 0.00047 hectograms All of the answer choices are correct.Question 1 A. Please indicate what the acronym, “VNTR” represents. (e.g., what words does this abbreviation represent.), then DEFINE “VNTR” and EXPLAIN the reason that VNTRs are useful in DNA fingerprinting. B. Is the male Rottweiler in the possession of Sam Slimy actually Goliath? This is the dog labeled “male Rottweiler” on the gel. Please offer evidence in support of your answer. C. What conclusions can you draw concerning the paternity of puppy #1? Please explain.
- QUESTION 5 A small molecule will typically move faster through an electrophoresis gel than a larger molecule. O True O False QUESTION 6 How much agarose powder should you weigh out if you want to make 100ml of a solution of 0.8% agarose? O 0.5g 0.8g O 1g 1.6gQuestion 1 Identify the parts in the following image: K B N El letaar MQUESTION 64 When transferring 0.8 mL of a chemical from íts source to a test tube, which of the following equipment would be most appropriate? O 10.0 mL beaker O 1.0 mL pipette 0.1 ml pipette 10.0 mL pipette 25.0 mL beaker QUESTION 65 True or False: The acknowledgements section of a scientific paper recognizes those who have played an active role in designing the experiment, carrying it out and/or analyzing data. O True O False