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- Question 15 While viewing a slide under the microscope, I can use 100 x lens directly. O True O FalseQUESTION 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 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 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 blueQuestion 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 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 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 1 Ordered Demerol 200mg and Vistaril 250mg IM. You have Demerol in 2 ml ampul with 100 mg/ml. Vistaril is in a 20 ml multi - doses vial labeled 150 mg/1.5ml. Wha is the total volume to be given? (If rounding is required, round to the nearest tenth).QUESTION 17 Which statement is true regarding pros vs. cons of SYBR green vs. probe-based qPCR? A. SYBR green qPCR assays are generally easier/cheaper to use and design while fluorescent probe assays are generally more complicated to design O B. Fluorescent probes allow for multiplexing (measuring more than one target in the same qPCR well) while SYBR green does not allow for that. O C. SYBR green-based qPCR assays are measured using Ct values, while fluorescent probe-based assays are not Fluorescent probes are highly specific and do not tolerate mutations at the binding site while SYBR green-based qPCR is more likely to include non-specific OD. amplicons E. Fluorescent-probe based assays rely on fluorescence while SYBR green-based qPCR does not O F. All of the above O G.A, B, and DQUESTION 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