Preview

E. Coli Transformation with Plasmid (Pgal), Pgal Isolation, and Analysis of Plasmid Dna

Good Essays
Open Document
Open Document
636 Words
Grammar
Grammar
Plagiarism
Plagiarism
Writing
Writing
Score
Score
E. Coli Transformation with Plasmid (Pgal), Pgal Isolation, and Analysis of Plasmid Dna
E. Coli Transformation with Plasmid (pGal), pGal Isolation, and Analysis of Plasmid DNA

Felicia Osadi
Bio 22
April 20, 2012

Transformation = group 10
Plasmid = group 7
RFLP = group 1

RESULTS
Table I. Plasmid Transformation of E. Coli. Plate # | Agar plate | Type | Result | 1 | X-gal | Control | Extensive lawn growth | 2 | Ampr / X-gal | Control | Clear no bacterial growth | 3 | Ampr / X-gal | Transformation | 1 blue colony |

Transformation efficiency = 1 transformants x 1.0 mL = 200 transformants/ug 0.025 ug 0.2 mL

Figure 1: Plasmid Isolation Gel Electrophoresis. This figure represents result from several groups doing plasmid isolation. All the data are collected in Bio 22 class on February 24, 2012. DNA obtained from this experiment comes from a plasmid DNA that were isolated and put into a buffer solution before running it through a gel. The result of our particular experiment is in lane 2. The sample in lane 2 is a control group which contains RNAse instead of DI water. This particular gel is 0.8% agarose.

Figure 2: Restriction Fragment Length Polymorphism of Circular DNA. Experiment which resulting this figure is done in Bio 22 lab on April 6, 2012. This figure represents several data that are obtained from adding certain restriction enzyme. Lane #1 represents a ladder, a marker of known fragment of DNA. Lane #2 represents uncut circular DNA. Lane #3 and #4 is the same circular DNA treated with SmaI and XhoI respectively. Solution in line #5 is treated with both SmaI and XhoI. While adding enzyme, the total volume is kept constant at 50 µL by adding water to the solution.

Figure 3: Standard Curve of Control Group in RFLP. All the data in this curve are obtained from the ladder that is used in RFLP experiment. Distance migrated is obtained by measuring the distance in cm from the top of the gel to the point where it migrated. The numbers of base pairs are given to us for

You May Also Find These Documents Helpful

  • Good Essays

    The purpose of this lab is to implement the technique of gel electrophoresis in the purification and size determination of various proteins and DNA fragments. In order to do this, a polyacrylamide gel will be prepared and placed in a buffer-containing gel electrophoresis apparatus. Next, an aliquot of acid phosphatase and a molecular weight marker (Composed of Phosphorylase B, bovine serum albumin, ovalbumin, and carbonic anhydrase) will be placed into separate wells within the gel, and the apparatus will be connected to a constant voltage source (175 V) for an allotted period of time (60 min). This will allow electricity to flow through the apparatus,…

    • 1568 Words
    • 7 Pages
    Good Essays
  • Better Essays

    Apush Unit 5 Review

    • 1238 Words
    • 5 Pages

    The purpose of this lab was to observe the different amount of distances each DNA samples travel when placed in a gel-electrophoresis box. Restriction endonucleases are critical tools in recombinant DNA methodology. Electrophoresis is the method of determining the size of fragments that are cut by restriction enzymes. These restriction enzymes always cut at their specific protein recognition sites. This is very useful in the sense that no two restriction enzymes codes for exactly the same recognition site, giving it a unique characteristic that is specific for a strand of DNA. Gel electrophoresis is a technique used to separate different sized fragments of DNA or RNA with the use of an electric field. When a molecule enters an electric field, the speed at which the molecule moves is influenced by several factors including: the charge of the molecule, the strength of the electrical field, the size and shape of the molecule, and the density of the medium (in this case the agarose gel) through which the molecule moves. Because of this, scientists are able to separate different groups of DNA or RNA molecules by first positioning all the molecules at a uniform starting point on the agarose gel and then placing the gel in a chamber containing buffer solution and electrodes. A buffer is a solution that adds extra ions to the gel enhancing the conductivity in the agarose gel matrix. Once in the chamber containing buffer solution and electrodes, the molecules of DNA will begin to migrate through the gel and form bands due to the negative charge of the phosphate groups in the backbone of DNA moving towards the positive electrode.…

    • 1238 Words
    • 5 Pages
    Better Essays
  • Powerful Essays

    D1S80 locus is placed on the short arm of the chromosome 1. This locus does not code for the arrangement for protein, yet it codes for a series of tandem repeats of 16 bp in human. Distinctive number of this allele has different number of repeats. These quantities of repeats are exceptional to every human. Primer is bind to this repeats and after amplification this makes fragments of different sized which can be seen on the agarose gel. From the extent of the fragment one can figure the number of repeats by following equation.…

    • 799 Words
    • 4 Pages
    Powerful Essays
  • Good Essays

    of genomic DNA that has been cut with restriction enzyme X. The gene you wish to insert has…

    • 4889 Words
    • 20 Pages
    Good Essays
  • Good Essays

    An individual’s code determines the number of times the restriction enzymes will cut and the number and size of DNA pieces that will result. These pieces can then be separated and compared using a process called gel electrophoresis. The DNA moves from the negative end to the positive end. As the fragments move, their varying lengths propel them through an agarose gel at different speeds. Short strands move through the holes in the gel more quickly than long strands and will over time move farther away from the starting point. Staining the sorted groups of DNA makes them visible to the naked eye (show up as bands in the…

    • 1489 Words
    • 6 Pages
    Good Essays
  • Good Essays

    E. Coli Lab Report

    • 811 Words
    • 4 Pages

    Once the recombinant plasmid has entered the bacterial cell, DNA polymerase initiates replication at the ori site, or the DNA sequence that signals for the origin of replication. The plasmid replicates using the bacterial DNA replication enzymes. The multiple copies of plasmids now can produce the red fluorescent protein in great quantities. If the simple sugar arabinose is present in the bacteria then an activator protein made by the araC (arabinose activator protein) gene turns on the promoter (pBAD), which then binds binds RNA polymerase. Consequently, transcription of the rfp gene occurs. After the processes of transcription and translation the protein alters the observable traits of the organism, specifically making it…

    • 811 Words
    • 4 Pages
    Good Essays
  • Satisfactory Essays

    First Lab 1 How Is It

    • 313 Words
    • 1 Page

    1. How is it possible to sort different lengths of DNA strands using gel electrophoresis?…

    • 313 Words
    • 1 Page
    Satisfactory 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
  • Good Essays

    Restriction enzymes are tools in DNA research that can cut DNA into exactly needed pieces. Certain cuts can be rough, while others can be clean. Certain cuts can have an organized pattern to have a staggered cut. Other cuts will leave complementary bases with them. Electrophoresis allows the manipulation of DNA to separate and organize those parts. Electrophoresis is the substrate electric movement of the separation of DNA. Gel Electrophoresis can separate both DNA and RNA. This can also allow the knowledge of the unknown bases of a strand of DNA. This can allow the knowledge of familiar patterns that can create a unique signature. Separation of these molecules…

    • 1180 Words
    • 5 Pages
    Good Essays
  • Good Essays

    After plasmid extraction (Fermentas, Lithuania), a double digestion was done with NcoI and XhoI (Fermentas, Lithuania) enzymes. The expression vector pET28a was also digested with NcoI and XhoI. The double digestion was carried out at 37ºC, digested fragments were analyzed by agarose gel electrophoresis and the products were purified (Fermentas, Extraction of DNA from the gel kit, Lithuania).…

    • 638 Words
    • 3 Pages
    Good Essays
  • Powerful Essays

    In this experiment, we determined the phenotypic capability of an unknown plasmid along with its size. With the use of gel electrophoresis, we analyzed the gel photograph by using a standard DNA marker, Lambda HindIII, and came to a conclusion based on our results.…

    • 3383 Words
    • 14 Pages
    Powerful Essays
  • Better Essays

    DNA Fingerprinting

    • 1281 Words
    • 5 Pages

    After the restriction digest incubation period, are there any visible clues that the restriction enzymes may have in some way changed the DNA in any of the tubes Explain your reasoning. Day 2 Post Lab Observation of Results Sketch your result to the left. Dry your gel as instructed. Quantitative Analysis of DNA Fragment Sizes If you were on trial or were trying to identify an endangered species, would you want to rely on a technicians eyeball estimate of a match, or would you want some more accurate measurement In order to make the…

    • 1281 Words
    • 5 Pages
    Better Essays
  • Good Essays

    Gene Transfer Lab Report

    • 939 Words
    • 4 Pages

    The following experiment method is based on the procedure given through the Biology Department at UWM (Wimpee, 2006). This experiments started with two tubes of 100 uL E. coli cells, labeled one and two. Tube one just contained normal E. coli cells. Tube two was the tube with the plasmid added to it. The first step in this experiment was to add plasmid DNA, the “mini chromosomes” of the bacteria, to the E. coli cells in order to change the genetic makeup of them. I then added 10 uL of the plasmid to tube two. The next step was to chill both the tubes E.…

    • 939 Words
    • 4 Pages
    Good Essays
  • Good Essays

    The two techniques that were used to create a DNA profile in this experiment were PCR and gel electrophoresis. The PCR is used to amplify the several DNA samples and gel electrophoresis is performed to separate the DNA fragments according to their size. [6] In the first part of the experiment, PCR amplification of the DNA templates was performed and the products obtained were used to perform gel electrophoresis. The process of PCR allows for the amplification of the DNA samples and the components needed to perform PCR are template DNA, DNA polymerase, primers, buffer, magnesium and nucleotides (dNTPs or deoxy nucleotide triphosphates).…

    • 953 Words
    • 4 Pages
    Good Essays
  • Good Essays

    Types of DNA Technology

    • 1361 Words
    • 6 Pages

    2) Easy uptake of DNA from environment (transport from environment) [Fred Griffith transformation did this].…

    • 1361 Words
    • 6 Pages
    Good Essays