Good Essay About Restriction Fragment Length Polymorphism (Rflp) Analysis Of T102c Polymorphism Of 5- Ht2a

Type of paper: Essay

Topic: DNA, Restriction, Enzyme, Business, Polymorphism, Products, Length, Polymerase

Pages: 1

Words: 275

Published: 2020/11/15

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The objective of this report is to review the steps that were conducted in the PCR directed RFLP evaluation.
Evidence Review
The fundamental technique for the detection of the restriction fragmented length polymorphism entails the segmentation of the DNA sample by applying a restriction enzyme. The process applies the differential in the sequences of the homologous DNA that can be found by the presence of DNA segments subsequent to their absorption. The restriction fragmented length polymorphism probes are applied in the evaluation of variations.

First Extraction

The complete DNA is absorbed with an enzyme that is sensitive to methylation. One of the examples of the enzyme that is applied is Pstl. The aggregation of the enzyme enables the enhancing of the file for the solitary of minimal copy demonstrated sequences. The clones of Ptsl are founded on the inference that the genes expressed are void from methylation (NCBI 2014).

Second Extraction

The next step is to take the size- divided DNA and place it on an agarose gel that is applied for preparation. The dimension of the fragments that range from 500 bp to 2000 bp are removed, eluted and subsequently cloned into a plasma substance. One of the examples of the plasmid substances that are applied is p UC18. The digested sections of the plasmids were reviewed for inserts. The Southern blots that are possessed by the inserts can be examined with completely sheared DNA. This is performed in order to choose the clones that have the capacity of hybridizing into solitary and minimal copy sequences (NCBI 2014).

Third Step Gel Electrophoresis

The gels that are applied are polyacrylamide and agarose gel. The gels are reliant on the distinct categories and dimensions of the analyte. The polyacrylamide gels are frequently applied for the minute fragments of DNA (5- 500 bp). The agarose gels, manifest a decrease power of resolution for the DNA and supply an enhanced range of spacing. The agarose gels are applied for the fragment of DNA that range from 50- 20,000 bp in dimension. Any resolution greater than 6 Mb is feasible with the pulse field gel electrophoreses (Saiki, Scharf, Faloona, Mullis, Horn, Erlich & Arnheim 1985).

Restriction of MSP

The electropherograms that are conducted with MSP I T- RFLP (restriction fragmented length polymorphism probes are applied in the study of the community profiles of bacteria. The DNA are absorbed with units of the 4 - base cutting agent MSP I. This is performed in a reaction that is composed of 1 X NE buffering agent 2 that is derived from New England Biolabs Inc. in Beverly Massachusetts. The cutting agent is subsequently incubated at a temperature of 37 ° C for an interval of fifteen hours in order to facilitate activation. The MSP I enzyme is deactivated by subsequently incubating the analyte at a thermal quality of 65 °C for 20 minutes. The residues are concentrated to ¬10 μl, desalinized and purified. The residues are placed in stringently deionized water by applying Microcon centrifugal filtering devices YM- 30. The filters originate with the Millipore Corporation in Billerica Massachusetts. The residues are further processed subsequent to having been examined with the MSP I four base cutting agent (Micallef, Shiaris & Colón- Carmona (2009).
The PCR effectiveness of the specimens is enhanced when the FTA cards are applied. The application of the FTA cards has the outcome of providing results from the PCR in real-time that have 96.8 % accuracy. There is a comparison with the same samples that were maintained congealed and transported on ice by the application of the requisites as they are mandate by the United States Department of Transportation. The application of the FTA cards allows for variations of the external temperature. There has been no perceivable distinction in the cycle threshold PCR conditions for the samples of diarrhea that were derived from the cows. In addition, the FTA cards showered no degradation of the samples that were derived from the respiratory syncytial, Corona virus and Herpes Virus that was derived from bovine animals
Liang, X., Chigerwe, M., Hietala, S. K., & Crossley, B. M. (2014). Evaluation of Fast Technology Analysis (FTA) Cards as an improved method for specimen collection and shipment targeting viruses associated with Bovine Respiratory Disease Complex. Journal of Virological Methods, 202, 69-72.
The polymerase chain reactions are beneficial for establishing paternity, reviewing forensic evidence, and the detection of malignant cellular tissue. Infections that entail the dissemination of bacteria can also be reviewed by the use of PCR. Genetic defects can be discovered by the use of PCR technology.
Murnanaghan, I. (3 January 2013). PCR analysis- Polymerase chain reaction. Explore DNA. Available at:
The annealing thermal characteristic may be deficient. The thermal gradient may enable to the identification of the annealing temperature. In order to eliminate the bands that are non-specific, the annealing thermal quality should be reviewed. Another cause is that the DNA may have decomposed.
Jain, D. (2015). Why am I getting multiple bands on gel after PCR amplification? Research Gate.
The PCR reaction has the requisite of the following four components. These components are the DNA pattern. This is derived from the sample DNA that comprises the target DNA sequence. An elevated amount of temperature is applied in order to compel the DNA strands to separate. The second step is the application of the DNA polymerase. This enzyme creates new DNA strands that are a complement to the original DNA target sequence Taq DNA polymerase is applied and Ptu DNA polymerase is implemented. The Ptu DNA demonstrates a higher level of fidelity when duplicating the DNA. The third step ids the application of primers. The primers are the material that the enzyme derived the pattern of the DNA. Nucleotides are applied. These are the solitary blocks of the bases C, G, T and A. These are the fundamental building blocks for the newly conceived DNA strands.
NCBI 2015. ‘PCR.’ NCBI. Available at:
The concentration and the level of purity of the DNA can be reviewed. In addition, the review can take place spectrophotometric ally. The integrity of the DNA extracts can be reviewed by an amplification of the 1030 bp area of the loop that pertains to the mitochondria D.
Ghatak, S., Muthukumaran, R. B., & Nachimuthu, S. K. 2013, ‘A simple method of genomic DNA extraction from human samples for PCR-RFLP analysis.’ Journal of Biomolecular Techniques: JBT, 24(4), 224.
In the PCR product that is identified, it can be noted that the restriction takes place at the value that is demonstrated at 1030 bps- 1200bps. Considering the majority of the strains, with regards to the electrophoresis profiles, the products of 495, 535 and 630bp were acquired. In one of the strains there had been no digestion product reviewed and the product of 1030 was obtained.
Piegza M., Barszczewski W., Witkowska D., Stempniewicz R., Robak M. 2006. ‘SCANNING OF GEOTRICHUM CANDIDUM GENOME BY RFLP-PCR OF rDNA AND RAPD’, EJPAU 9(3), #21.Available Online:[AccessedFebruary 16, 2015]
Q. 8
The outcome demonstrated that the segment with dimensions of 350 bp would demonstrate the natural type of 5- HT2A receiver. This category is also known as the wild homozygous category. The presence of the outcomes of 200 bp and 100 bp would have manifested the variation of the 5- HT2A receptor. This category is known as the homozygous mutant. It was demonstrated that the characteristics of the lanes 1, 2 and 3 representing the imaging of the products with dimensions of 342 bp. The lane 6 demonstrated the restriction fragmented length polymorphism for the 102C. This outcome was separated into two products that were classified as 126 bp and 216 bp which manifested a limiting location for the MSP enzyme. Notwithstanding, the restriction fragmented length polymorphism demonstrated all of the three outcomes (126 bp, 216 bp and 346 bp). The MSP I restriction enzymes facilitated the distinction of some of the isolates, however, there were identical patterns that were acquired for all of the reviewed strains. There were no concise distinction in the profiles subsequent to the restriction that was exerted by the MSP I enzyme. Consequently, the aim of the experiment has been produced. The objective of the experiment was protein purification.


Micallef, S.A., Shiaris, M. P. and Colón- Carmona, A. 2009, ‘Influence of Arabidopsis thaliana accession on rhizobacterial communities and natural variation in root exudates.’ Journal of Experimental Botany, vol. 6, no. 6, pp. 1729- 1742. Available at:
NCBI 2014, ‘Restriction Fragment Length Polymorphism (RFLP).’ NCBI. Available at: [Accessed February 15, 2015]
Saiki, R.K., Scharf, S., Faloona, F., Mullis, K.B., Horn, G.T., Erlich, H. A. and Arnheim, N. 1985, ‘Enzymatic Amplification of Beta- Globin Genomic Sequences and Restriction Site Analysis for Diagnosis of Sickle Cell Anemia.’ Science, vol. 230, no. 4732, pp. 1350-1354. Available at: [Accessed February 15, 2015]

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