Table 1. PCR Components Final Concentration Volume for 1x Volume Initial PCR Components Concentration [C1] for 13x [C2] [V1] [V2] sterile distilled H20 PCR Buffer Magnesium Chloride (MgCl2) DNTP Mix 10x 1x 50 mM 1.5 mM 10 mM 0.4 mM 10 µM 10 μΜ 5U/µL 100 ng/µL 0.3 μΜ 0.3 µM 10/25 µL 100 ng Forward Primers Reverse Primers Taq Polymerase genomic DNA template Total 25.0µL
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- mead. Post Lab #2 Smear & Stain Preparation Name: Leidiawa MontaNo Date: 1. Why are thick or dense smears less likely to provide a good smear preparation for microscopic evaluation? Please explain. Becapse, it will diminish the amount ds latcan Pass through by mam 1t difficult to See under the micioscol e, s less liket to Prowde a go image. 2. What could potentially happen if you leave the slide exposed for too long to the open flame? Why do you have to be careful? we can form ring Patterns if we expose the slide for ta0 the flame 3. During the preparation of a smear leading into simple staining of the bacterial culture S. epidermidis you forgot to heat fix the slide. What would you see on this slide as compared to a slide that was properly prepared? Please explain. 4. You partner stained bacterial cells and saw only the background and not the actual cell was stained. Your partner thought this was a mistake. Please explain what type of staining method this is, how it works and why the…Time point (min) Absorbance of culture at 660nm Approximate cell concentration Approximate # cells in 1mL extract 0 0.298 1.49 x 108 cells/mL 1.49 x 108 cells 10 0.316 1.58 x 108 cells/mL 1.58 x 108 cells 20 0.374 1.87 x 108 cells/mL 1.87 x 108 cells 30 0.429 2.145 x 108 cells/mL 2.145 x 108 cells 40 0.512 2.56 x 108 cells/mL 2.56 x 108 cells 50 0.544 2.72 x 108 cells/mL 2.72 x 108 cells 60 0.607 3.035 x 108 cells/mL 3.035 x 108 cells a. Using these data, prepare a growth curve of this strain ofEscherichia coli (E. coli).b. Estimate the doubling time for this strain of E. Coli. Clearly showhow you estimated this value from the empirical data presented.File guft 1.yt Machine Cochise14ee7 Lane 0 Pmer. DTarPOPD mob Comment 17703 Spacing 15.06 Siga C 17A 4 G 2 Bases 0 an 2004 Gelstat ime123 219 20 30 60 70 NNACTCA TCTOGTGGA TTC CTA TCCTG AC A AG TGATGTG CAAAC TG GTAACTC TG AG GCAGATAAC CA G GG CA AA AAGGTG TATAAG 100 110 140 100 CAGA AG TC CGGA AA A TCA TT TAA 170 TAAA ACA AAGCCCTAACT TG GAAG AAGT TCA GTTTTACACA TCT TTA TA TG GAGAGAA 180 TAT TCTAT TA ATOTCCTGT TA TATT TG TCA TATTCA TA CAGT TGTCACAGTATATT TCAAAC CA AC TG TTTAAAA ACAAAC TO AAATAAA 210 230 240 260 270 AAATTTAAATACCCT TA TG TA AA ATAG GCT TC CC TG GTG GCTCAG GG GTAAAAA ACTCGC CCGC CA ACGCAG GAGATGTAGAT TTGATC CCT 300 310 340 350 410 430 440 GG GT TAG GA AG icCCTa GAGA AGGAAATGAAAAAC CACTCTAG TAT TCT Tac CTG GG AAATC CCA TGGACAG AG GAGCOTO GAG G Gc 490 500 SI0 530 TACAGTCCATGGGAGTCGCAA A AGAGT TG GACATG ACTAA ACA ACAACATATAAAATAACCT TACTC CATAATGTCAAACT TATOTCACAC S40 AAA ATGCAA AGT TCT TACATCTAT TAACTTTTATGOT TAAATATA ACCTAATGCACTOTTT TATACAGCA ACAACTACT TT TT TATTT TAAA…
- Iryour igation and transformation reactions were successful, what will you see on the LB/AMP/X-gal/IPTC agar plate? OWhite growth O Blue growth O No growthMOLLISCH TEST You can use this as your reference : https://youtu.be/rKng5-ij6kQDNA concentration is 3.75 ng/ ul = the dilution factor is 1:______ we add____ uL dna extract to ____ ul buffer final dilution concentration _____ ng/ ul please explain
- Nitrogen Content Assay Method II l is also known as? Micrometric Method Semimicro Method Macromethod DistillationAnswer TRUE OR FALSE only. 1. All types or kinds of media powder has a standard ratio of 23:1000. Meaning that 1000 ml of water is needed to dissolve 23 grams of powder medium. 2. Simple stains use one dye and cannot differentiate various types of bacteria while differential stains use several dyes in order to differentiate between different kinds of bacteria. 3. A certain student prepared his fixed sample for examination by pouring Nigrosin which is an acidic stain. He then observed that under the microscope the background was stained but the bacterial cells were untouched. This student therefore adapted the acid-fast staining procedure. 4. In doing serial dilutions, the original sample must be shaken at least 25 times to obtain a uniform distribution of organisms. 5. Label all reagents with its name, concentration and date of its preparation except for water.Discuss about the reagents used for agarose gel electrophoresis (not Polyacrylamide gel electrophoresis)
- Special Media for Isolating Bacteria OBJECTIVES Because multiple methods and multiple media exist, you must be able to match the correct procedure to the desired microbe. For example, if bacterium B is salt-tolerant, a high concentration (>5%) of salt could be added to the culture medium. Physical conditions can also be used to select for a bacterium. If bacteri- After completing this exercise, you should be able to: 1. Differentiate selective from differential media. 2. Provide an application for enrichment and selec- tive media. um B is heat-resistant, the specimen could be heated before isolation. Dyes such as phenol red, eosin, or methylene blue are sometimes ineluded in differential BACKGROUND media. Products of bacterial metabolism can react with One of the major limitations of dilution techniques used to isolate bacteria is that organisms present in limited amounts may be diluted out on plates filled with dominant bacteria. For example, if the culture to be isolated has 1…HonorSociety org č. * SpiasiLa * Maps New Tab Describe your color observations of the Nitrate test. a. after adding Reagents A, B (and/or znic): cements b. Did the organism reduce nitrate? (yes or no) ments c. Is the final product nitrate, nitrite or ammonia/nitrogen gas? sions ing es Question 13 4 pts y Resources ules Based on your observations of the SIM test: ple a. Did sulfur reduction occur (yes/no)? zes b. Did the organism produce the enzyme tryptophanase (yes/no)? abus m c. Is the organism positive or negative for the motility test?3. You were instructed to add 2.75 mL out of 5.0 mL of an undiluted sample to 125.25 mL of sterile diluent. Instead, you add all 5.0 mL to the 125.25 mL, What was the intended dilution and what was the actual dilution? ited States) E Focus OCT 30 W MacBook P DII DD F7 F8 F9 F10 F4 F5 F6 F3 2$ 4 081 R F G H. K < CO