Which of the following is the densest TAG? Otrimyristin triolein O tristearin Otripaltristearin mitin
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- A cationic microbacteriaI peptide is anaIysed using cation exchange chromatography where the packing materiaI has a negative (-) charge. Choose which buffer system is best used. trishydroxyIammonium ammonia trisaminomethane phosphateWhich of the following polymer is intracellular? chondroitin sulfate Heparan sulfate Keratan sulfate Heparin sulfateIn SDS PAGE the resolving gel : is 4%(w/v) acrylamide,PH )6.8 is 6-20% (w/v) acrylamide is 4%(w/v) acrylamide
- Which of the following is NOT a REDOX reaction? 2Al(s) + 3CuSO4(aq) → Al2(SO4)3(aq) + 3Cu(s) Cl2(aq) + 2KBr(aq) → Br2(aq) + 2KCl(aq) AgNO3(aq) + KCl(aq) → AgCl(s) + KNO3(aq) Sn(s) + 2HCl(aq) → SnCl2(aq) + H2(g)The first choice : ori lacZ blaz araC GFP The second choice : arabinose Ampicillin X-gal IPTG GFP The third choice : X-gal lactose arabinose GFP Ampicillin The fourth choice : on ice at 42℃ at 95℃ at 37℃ at RT The fifth choice : arabinose ampicillin lactose X-gal GFPWhy do we use a stacking gel in SDS-PAGE
- If you have to prepare 4 nM solution of human IgG ( immunoglobuline) which has molecular mass of 150 kDa. How many times do you need to dilute you stock solution of hIgG ( 1 mg/mL) please solveYou will use a Calf Thymus DNA standard stock solution (1 mg/ml) to prepare a standard curve. Calculate volume of stock solution in ul, needed to prepare 10 ug/ml dilution (final volume 1.0 ml).How do you prepare 50 ml of 20 mg/ml proteinase K from 50 mg/ml stock solution
- Which of the following is not used as an antiseptic? A. Chlorhexidine B. Phenol C. Iodophor D. Hydrogen PeroxideDifferent stains have different affinities for different organisms or different parts of organisms. Elaborate on this statement using the Hematoxylin and Eosin staining as an example.Which of the chemical compounds below can be used to label DNA for flow cytometry? A )Nocadazole B) Propidium Iodide (PI) C) Triton-X (Tx) D) Bromodeoxyuridine (BrdU) E) Phosphate Buffered Saline (PBS)