Preview

Pglo Transformation Lab Report

Good Essays
Open Document
Open Document
889 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
Pglo Transformation Lab Report
Title of the lab: Transformation : Bacterial Genetics
Purpose of the lab: The pupose of the lab was to transfor a bacterial E. Coli by using the green flurescent protein from the jellyfish. Another important that was fferdone by making the cell competency, meaning that it will be able to take on additional DNA. This was done when the plasma was added.
Materials:
1. 37 o C water bath
2. Ice
3. Sterile transfer pipette
4. Foam tube rack
5. Transformation solution (CaCl2)
6. pGLO plasmid
7. Sterile Inoculating loop
8. 2 - LB+amp plate
9. LB+amp+ara plate
10. LB plate
11. LB broth
12. E.coli starter plate culture
Procedure:
The test tubes were labael +pGLO and another –pGLO, and placed them on a test tube.
Transfer 250uL of transformation solution CaCl2
The tubes were place in an ice bath
Transfer a colony of bacteria by using a sterile loop and mak e sure all is mixed well
Return the tube on the ice bath and redo step 4 with the –pGlo tube.
Put a loop full of plasmid DNa into the +pGLO tube and make sure you mix it well
Return the tune over the ice bath for additional 10mins.
Place tube into water bath for 50 seconds, transfer them back and incubate for teo minuted
Add 250 uL of LB nutrient agar and incubate at room temperature for 10 minutes
Transfer
…show more content…
For the tube that did not show growth meanth that the E-coli was never transformed and perheps never had a plasmid introduce to it. If bacteria did grow, it meant that the E. Coli was transformed and was now ampicillin resistant. E- Coli is naturally not resistant to ampicillin, but in this case it contain an ampilicillin resistant gene, that when introduced to E. Coli allows it to grow in the presence of ampicillin. ---pGLO LB, +pGLO LB LB+Amp -pGLO LB LB+Amp+Ara showed growth meaning it had the plasmid, but the -pGLO LB+Amp did not show growth meaning that it did not have

You May Also Find These Documents Helpful

  • Good Essays

    G Straine Lab Report

    • 1558 Words
    • 7 Pages

    To grow the bacterial culture, use 10 ml of liquid LB growth media for incubation. 500 ml of the bacterial culture is allowed to grow overnight at 37°C. It is later shaken vigorously to increase the OD600 to 0.5, which means that time equals zero. At time zero, 1 mL of the culture is transferred into a 1.5 mL centrifuge tube and centrifuged for 5-10 minutes to obtain a pellet. The supernatant should be discarded. The centrifuge with the bacterial pellet is labeled “G0” and stored at -20°C. The culture is induced with 1 Mm of IPTG and allowed to keep growing. After 3 hours past induction, 1 mL of the culture is pelleted into a different 1.5 mL centrifuge tube, and the bacterial pellet is labeled “G3.” The centrifuge with G0 bacterial strain needs 15 mL of the strain to be collected and to be pelleted into the centrifuge tube. The last pellet is labeled “G3-15 mL.” Finally, both the G3 and G3-15 mL are to be stored at -20°C.…

    • 1558 Words
    • 7 Pages
    Good Essays
  • Satisfactory Essays

    For the completion of this experiment the procedures were guided with the Rainbow Transformation1 lab manual. An Escherichia coli bacterial reference plate was used to obtain colonies which were resuspended into a CaCl2 solution that was previously kept on an ice bath. The rainbow transformation mixture containing the plasmid DNA was then added to half of the E. coli cells. These cells were later placed into a water bath set to 42ºC and “heat shocked” to promote the entrance of DNA into the cells. Moreover, a Recovery Broth was added to the sample and the sample was left undisturbed for 30 minutes at room temperature so the “heat shocked” bacteria would acquire the antibiotic resistance gene.…

    • 362 Words
    • 2 Pages
    Satisfactory Essays
  • Good Essays

    The topic of this research involved the occurrence of genetic transformation in bacteria (E. Coli). More specifically, a previously prepared pGLO plasmid--which consisted of the gene to be cloned--was used to transform non-pathogenic bacteria. The pGLO plasmid contained a gene for the Green Fluorescent Protein (GFP) from a bioluminescent jellyfish and a gene for resistance to ampicillin, an antibiotic. Essentially, we wanted to determine the conditions of the bacteria that would glow. Our hypothesis was that the transformed solution with no plasmid DNA and ampicillin would produce no bacteria colonies, as it wouldn 't be able to grow without the gene for ampicillin resistance. Also, the transformed solution with just LB and ampicillin would produce bacteria colonies but the transformed solution with LB/ampicillin/Arabinose would produce glowing bacteria colonies (as Arabinose allows the GFP gene to be expressed, but in both cases bacteria colonies would be present because of the gene of resistance to the antibiotic, ampicillin). We essentially made the required transformed solutions--and the controls--swiped them on the agar plate, and then observed to see whether or not bacteria colonies grew and whether or not they glowed. Our data fully supported our hypothesis. We can thus conclude that bacteria can take in foreign DNA through the process of transformation and that this foreign DNA can fundamentally change the bacteria (ex: making it glow). Future research can involve inserting other pieces of DNA into bacteria from different organisms, making the bacteria take on various phenotypic characteristics.…

    • 1330 Words
    • 5 Pages
    Good Essays
  • Good Essays

    When a bacterium integrates a piece of DNA into its genome, bacterial transformation has occurred. In this experiment bacterial transformation will be done using calcium chloride/heat shock. This is done by incorporating the plasmids into chemically competent cells that were made permeable by the calcium chloride solution and heat shock. In 1928, Frederick Griffith, a physician from London, was he first person to experiment with bacterial transformation. He permanently transformed a safe, nonpathogenic bacterial strain of pneumococcus into a deadly pathogenic strain. [1]…

    • 463 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Genetic transformation is a process that primarily is inserting new DNA into an organism to change that organism’s trait. This process has many useful benefits when used correctly in different organisms. In this lab, bacteria was transformed by inserting DNA for Green Fluorescent Proteins. The DNA for these proteins were taken from bioluminescent jellyfish Aequorea victoria. One of the main lessons of the lab is learning of the use of ‘plasmids’. Plasmids are small pieces of DNA that usually code for one trait and are easily transferable between bacteria. This transfer of plasmids between bacteria is actually extremely helpful for them and are key in their survival. The plasmid that codes for the Green Fluorescent Proteins is accompanied with a gene for resistance to the antibiotic ampicillin. To ‘switch on’ the gene for fluorescence caused by the proteins, sugar arabinose must be added to the bacteria’s environment. If there is no sugar arabinose introduced to the plates, then the bacteria will appear white and will not glow, even if the gene for the proteins is successfully inserted. If the gene was successfully inserted and there is sugar arabinose present then the bacteria will glow a fluorescent green. The objectives for this lab is was to see the effects on bacteria in four different cases. The first case is the effect on bacteria when the gene for pGLO is introduced with LB (a ‘broth’ like substance that bacteria feed off of) and ampacillin. The second case is the effect on bacteria when the gene for pGLO is introduced with LB, ampacillin, and sugar arabinose. The third case is the effect on bacteria when no gene for pGLO is introduced, but LB and ampacillin is still introduced, The fourth case is the effect on bacteria when no gene for pGLO is introduced, but bacteria is still placed in a LB enriched environment. The…

    • 938 Words
    • 4 Pages
    Good Essays
  • Good Essays

    The pGLO(+) culture had growth on all three plates. The LB medium was expected to have growth on it because it also served as a control. The LB amp plate had growth on it because the culture was antibiotic resistant due to the pGLO transformation…

    • 263 Words
    • 2 Pages
    Good Essays
  • Good Essays

    Pglo Lab Report

    • 548 Words
    • 3 Pages

    Then we opened the tubes and using a sterile pipet we put 250 µl of transfer solution in and placed them on ice. Next we removed them from the ice and used a sterile loop to pick up a single colony of bacteria. We put a colony in both tubes and then placed both tubes back on the ice. After that, we placed a loopful of plasmid DNA into the positive pGLO. We then incubated the tubes on ice for ten minutes. After the ten minutes were up, we placed the tubes in a bath of forty two degree centigrade water for fifty seconds, and then quickly back onto the ice for two minutes. After that we removed them from the ice and added 250 µl of LB nutrient broth to the tubes and let them sit at room temperature for ten minutes. When the ten minutes had passed, we flicked the tubes to mix them and added 100 µl of transformation and control suspensions onto the appropriate plates. Finally we spread the solution using a sterile loop, stacked the plates, and placed them upside down in an incubator at thirty seven degrees…

    • 548 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    Biology Lab

    • 2372 Words
    • 10 Pages

    If the pGLO plasmid is inserted into competent Escherichia coli cells, then the transformed bacteria will be resistant to ampicillin and will glow green under UV light. If samples of DNA are cut using certain restriction enxymes and separated using gel electrophoresis, then the smaller the DNA fragment cut, the greater the distance it will travel in the gel.…

    • 2372 Words
    • 10 Pages
    Powerful Essays
  • Powerful Essays

    Two experiments were done to identify an unknown plasmid. The success of these experiments came from the use of modern day technology involving gel electrophoresis. First, bacterial transformation to E. Coli DH5 was performed on our unknown plasmid along with two known plasmids, pAMP and pKAN, and a negative control TE, a buffer without DNA. By performing confluency streaking of bacteria in plates containing antibiotics, we were able to examine the recombinant DNA of the bacteria. After incubation of the plates, we analyzed the samples and found that our unknown plasmid reacted positively on the LB/AMP plate. There were a total growth of three colonies on the LB/AMP plate and a negative result on the LB/KAN plate. With this data along with the positive reaction of pAMP on the LB/AMP plate, we came to the conclusion that our unknown plasmid was pAMP. In our next experiment, we analyzed the DNA via gel electrophoresis. First, we had to treat our unknown plasmid. Three treatments were performed: Uncut (U), single cut (S) with HindIII, and double cut (D) with HindIII and Bam H1. The gel was then stained with Ethidium Bromide, often used in chromatography, in order for us to view the gel under UV light. A photograph of the result was then printed out. This allowed us to determine the migration of each sample along with the number of base pairs in each fragment. Standard fragments of DNA were used to determine the size of our unknown plasmid, which at this point was pAMP. With the use of both pKAN and pAMP plasmid maps, we were able to solidify our conclusion that the unknown plasmid was pAMP.…

    • 3383 Words
    • 14 Pages
    Powerful Essays
  • Good Essays

    Gene Transfer Lab Report

    • 939 Words
    • 4 Pages

    Escherichia coli is a bacterium that can affect our health or even kill. Like most bacteria, E. coli is able to change and progress into different forms based on genetic changes that they can go through. One example of this genetic change is shown in the E. coli becoming immune to ampicillin is blood infections. Because ampicillin has been used so frequently to fight the symptoms of an E. coli infection, the bacteria has been able to change itself genetically by producing more of an inhibitor resistant TEM in order to continue it’s genetic line and reproduce causing infections in humans (Walters-Toews, et al. 2011). Another example from the science field would be an experiment that suggests that E. coli is not only becoming resistant to ampicillin, but also other antibiotics including Cotrimoxazole and Cefuroxime (Renal & Urology News, 2007). This experiment is meant to prove that through genetic transfer using plasmid DNA, the E. coli can become bioluminescent and immune to the ampicillin. By adding plasmid DNA to the E. coli cells, the genetic composition of the cells will be different. I predict that the E. coli cells containing no ampicillin will be able to grow colonies. I also predict that the plates with plasmid DNA will show signs of bioluminescence. The plate with ampicillin present with no plasmid DNA will not be able to grow colonies and will not be capable of bioluminescence.…

    • 939 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Stage two was the uptake of DNA by competent cells. This stage was carried out by five groups, three performing plasmid pUC18 and two groups performing plasmid lux. Each group labeled two Eppendorf tubes, one was labeled…

    • 499 Words
    • 2 Pages
    Good Essays
  • Satisfactory Essays

    Ecoli lab report

    • 993 Words
    • 4 Pages

    and glucose). After a warm water bath, Sarkosyl detergent, toluene and ONPG were added to the tubes…

    • 993 Words
    • 4 Pages
    Satisfactory Essays
  • Powerful Essays

    Arabinoe Operon Promoter

    • 3691 Words
    • 15 Pages

    ampicillin was added to the plates to kill any bacteria that did not take up a plasmid. The bacteria…

    • 3691 Words
    • 15 Pages
    Powerful Essays
  • Better Essays

    The first procedure began by adding 8.5 µL sterile distilled H2O, 1.0µL of the appropriate 10x buffer, 1.0µL combination of the restriction endonucleases and 1.0µL of pBR322 plasmid DNA (the DNA would be added last) in 5…

    • 920 Words
    • 4 Pages
    Better Essays
  • Good Essays

    Extraction of Plasmid Dna

    • 940 Words
    • 4 Pages

    Introduction: A plasmid is an autonomously replicating extra-chromosomal genetic element. In other words, this is a DNA molecule external to the bacterial chromosome that is able to replicate on its own and distribute its daughter molecules to daughter cells. You have successfully cloned a fragment of chromosomal DNA containing a tetracycline resistance cassette into a plasmid (pET11a). To this end you have (1) isolated total chromosomal DNA from your assigned bacterial strain and digested this DNA with the restriction enzyme BamHI. You have also (2) digested the plasmid cloning vector (pET11a) with the same restriction enzyme. You have (3) randomly ligated the digested chromosomal DNA into the plasmid and (4) transformed an Escherichia coli strain JM109. You have selected for transformants by plating the transformed DNA onto rich media (TCS) containing ampicillin. (The pET11a plasmid contains an ampicillin resistance cassette that renders any bacteria harboring this plasmid resistant to ampicillin and therefore capable of growing on media containing ampicillin). Finally, you have (5) scored for transformants that are not only resistant to ampicillin but also resistant to tetracycline. To this end you replica plated the colonies that grew on the TCS-ampicillin plates onto TCS media containing both ampicillin and tetracycline. If a colony grew on the TCS ampicillin, tetracycline plate then that colony is resistant to ampicillin because the bacteria in that colony contain the pET11a plasmid and is resistant to tetracycline because you have cloned a fragment of DNA that contains the tetracycline resistance cassette. You are now ready to isolate the plasmid containing your cloned fragment such that you can 1. digest the plasmid with BamHI to evaluate the size (bp) of your cloned fragment and 2. submit the plasmid containing your cloned fragment for sequence analysis.…

    • 940 Words
    • 4 Pages
    Good Essays