Background: The invention of Polymerase Chain Reaction (PCR) marked a breakthrough in biomedical research. Its invention divided the timeline into an era before and after PCR. Because of its multiple applications, it has become a vital tool for clinical researchers and diagnosticians. A effective PCR experiment requires adequate knowledge of each reaction component and stepby- step procedure to attain the optimized results. This research aims to employ optimization strategies that are easy to perform, cost-effective, and do not require PCR kits for the generation of amplicons for TYR, MITF, and SOX10 genes and can be used in sequence analysis. Materials and Methods: Whole blood samples were used to extract genomic DNA with an inorganic method. DNA quantification was done by spectrophotometry analysis. Optimization strategies were adopted to generate PCR products of candidate genes and visualized by agarose gel electrophoresis. Sanger sequencing was performed to check the quality and specificity of generated amplicons via optimization strategies. Results: This study demonstrates a novel approach for troubleshooting failed reactions without the use of PCR kits. The result indicated that use of sterilized material and reagents along with optimum MgCl2 concentration (2.0-3.0 mM), DNA quantity (25 ng/μL), and annealing temperature (54-60°C) are necessary to achieve successful amplification. Sequence analysis revealed no background noise often associated with sequencing results. Conclusion: Optimizing MgCl2 concentration, DNA quantity, annealing temperature, along with the use of contamination-free material and reagents are essential steps in PCR optimization. Following this guide, anyone lacking proper supervision, and with little or no knowledge of the procedure should attain the desired results.
Eye colour in humans is a distinct character, and an important trait of an individual’s personality. Heterochromia iridis is a unique phenotype. It is an exceedingly rare condition caused by mutations in genes responsible for synthesis, distribution, and concentration of the melanin pigment in the irises of the eye. Many health disorders and syndromes are associated with heterochromia. Here, we report for the first time in Pakistan, two unique individuals with sectoral heterochromia. This report also addresses the social and psychological pressures these remarkable individuals face in the Pakistani society.
This paper proposes a new algorithm for solving the
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