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Explore diverse research on genetic variation, virological surveillance, and forensic DNA evidence in Sri Lanka, presented at various academic conferences and symposiums Conference Papers and Communications Page 1 of 2 Nirmani, M. D., Perera, K. L. N. S. & Galhena, G. H. (2020) A preliminary virological surveillance of field-caught adult Aedes aegypti (Linnaeus) and Aedes albopictus (Skuse) mosquitoes in selected sites in the District of Colombo and Gampaha of Sri Lanka. Proceedings of Annual Research Symposium 2020, University of Colombo; 44. De Mel, W. D. Y., Illeperuma, R. J., Fernando, S. P., Pusweldeniya, B. M. J. & Padmalal, U. K. G. K. (2019) Genetic variation of Elephas maximus maximus in Maduru Oya national park in Sri Lanka, age 2019: International Conference on Agriculture, Green Economics and Energy, Sapporo, Japan, 2019. Perera, N., Galhena, G. & Ranawaka, G. (2019) Development of a novel X-chromosomal STR based dacaplex PCR assay for the kinship analysis of Sinhalese population. Proceedings of the Open University Research Sessions (OURS 2019), Open University of Sri Lanka, P19. Available from: https://ours.ou.ac.lk/wp-content/uploads/2019/12/Abastracts-Open-University-Research-Sessions-October-2019-19-20.pdf Perera, N., Galhena, G. & Ranawaka, G. (2019) Genetic profiling of six X-chromosomal STR loci among Tamil populations in Sri Lanka. Proceedings of the 39th Annual Sessions of the Institute of Biology. Institute of Biology Sri Lanka, P36. Perera, N., Galhena, G. & Ranawaka, G. (2019) Haplotype analysis of two X-chromosome STR clusters in Sinhalese population. Proceedings of Annual Research Symposium, University of Colombo, P230. Nirmani, M. D., Perera, K. L. N. S. & Galhena, G. H. (2019) Suitability of six microsatellite markers for evolutionary genetic studies of Asian tiger mosquitoes in Sri Lanka. Proceedings of Annual Research Symposium. University of Colombo; 227. Nirmani, M. D., Perera, K. L. N. & Galhena, G. H. (2019) Microsatellite marker-based population dynamics of the dengue vector, Aedes albopictus in Wet and Dry Zones of Sri Lanka. Proceedings of the 75th Annual Sessions of The Sri Lanka Association for the Advancement of Science; 79. Pusweldeniya, B. M. J. & Illeperuma, R. J. (2018) The success of cigarette and beedi butts as forensic DNA evidence in Sri Lanka. Annual Scientific Sessions of the Medico-Legal Society of Sri Lanka, Colombo, 2018. Nirmani M. D., Perera, K. L. N. & Galhena, G. H. (2017) The effect of extensive mosquito migration on dengue control as revealed by phylogeny of dengue vector Aedes aegypti. World Academy of Science, Engineering and Technology, International Science Index, Medical and Health Sciences, 4(12), 304. Available from: https://www.researchgate.net/publication/327305382_The_Effect_of_Extensive_Mosquito_Migration_on_Dengue_Control_as_Revealed_by_Phylogeny_of_Dengue_Vector_Aedes_aegypti Nirmani M. D, Perera, K. L. N. & Galhena, G. H. (2017) A comparison of genetic variability of dengue vectors using microsatellite and EPIC markers. Proceedings of Annual Research Symposium 2017, University of Colombo; 268. Available from: https://www.researchgate.net/publication/327305343_A_comparison_of_genetic_variability_of_dengue_vectors_using_microsatellite_and_EPIC_markers Nirmani M. D., Perera, K. L. N. & Galhena, G. H. (2017) Genetic diversity and population dynamics of dengue vectors Aedes aegypti and Aedes albopictus in selected localities in Sri Lanka. Proceedings of the 73rd Annual Sessions of The Sri Lanka Association for the Advancement of Science; 169. Available from: https://www.researchgate.net/publication/327305541_Genetic_diversity_and_population_dynamics_of_dengue_vectors_Aedes_aegypti_and_Aedes_albopictus_in_selected_localities_in_Sri_Lanka Tharaka, K. P. D. & Illeperuma, R. J. (2017) Amount of DNA in forensic hair evidence play minor role in success for conventional nuclear DNA testing, Annual Scientific Sessions of the Medico-Legal Society of Sri Lanka, Colombo, 2017. Nirmani, M. D., Gangani, P. D., Perera, K. L. N. & Galhena, G. H. (2016) Aedes aegypti population dynamics help evaluation of current vector control measures in Sri Lanka. Proceedings of Annual Research Symposium 2016, University of Colombo; 282. Available from: https://www.researchgate.net/publication/327305108_Aedes_aegypti_population_dynamics_help_evaluation_of_current_vector_control_measures_in_Sri_Lanka Gangani, P. D., Nirmani, M. D., Perera, K. L. N. & Galhena, G. H. (2016) Microsatellite markers reveal high genetic diversity among principal dengue vector, Aedes aegypti in Sri Lanka. Proceedings of the 36th Annual sessions of the Institute of Biology; 42. Nirmani, M. D., Gangani, P. D., Perera, K. L. N. & Galhena, G. H. (2016) Long distance passive migrations may explain the low genetic differentiation in principal dengue vector (Aedes aegypti) in Sri Lanka. Proceedings of the 36th Annual Sessions of the Institute of Biology; 43. Nirmani, M. D., Perera, K. L. N. & Galhena, G. H. (2015) Microsatellite markers reveal the spatial genetic structure of dengue vector Aedes aegypti in selected areas in Colombo district. Proceedings of the 35th Annual sessions of the Institute of Biology; 54. Available from: https://www.researchgate.net/publication/327305566_Microsatellite_markers_reveal_the_spatial_genetic_structure_of_dengue_vector_Aedes_aegypti_in_selected_areas_in_Colombo_district Nirmani, M. D., Madusanka, R. A., Perera, K. L. N. & Galhena, G. H. (2015) Use of ovitrap surveillance in assessing dengue outbreak risk in selected areas in Colombo district. Proceedings of Peradeniya University International Research Sessions 2015, University of Peradeniya; 229. Available from: https://www.researchgate.net/publication/327305370_Use_of_ovitrap_surveillance_in_assessing_dengue_outbreak_risk_in_selected_areas_in_Colombo_district Nirmani, M. D., Perera, K. L. N. & Galhena, G. H. (2015) Vector surveillance suggests an enhanced vector status for Ae. albopictus compared to Ae. aegypti in the Kandy district. Proceedings of Annual Research Symposium 2015, University of Colombo; 112. Available from: https://www.researchgate.net/publication/327305462_Vector_surveillance_suggests_an_enhanced_vector_status_for_Ae_albopictus_compared_to_Ae_argypti_in_Kandy_district Nirmani, M. D., Perera, K. L. N. & Galhena, G. H. (2015) Oviposition activity of dengue vectors in response to two different organic infusions. Proceedings of Annual Research Symposium 2015, University of Colombo; 113. Nirmani, M. D., Perera, K. L. N. & Galhena, G. H. (2015) Feasibility of using Exon-Primed Intron-Crossing (EPIC) markers to detect the genetic variation of a dengue vector in Sri Lanka. Proceedings of the 35th Annual Sessions of the Institute of Biology Sri Lanka; 60. Available from: https://www.researchgate.net/publication/327305637_The_feasibility_of_using_Exon-Primed_Intron-Crossing_EPIC_markers_to_detect_the_genetic_variation_of_a_dengue_vector_in_Sri_Lanka Kamaral, L. C. J., Perera, S. A. C. N., Perera, K. L. N. S. & Dasanayake, P. N. (2014). Population Structure of Sri Lanka yellow dwarf coconut variety as revealed by SSR markers. International Conference on Multidisciplinary Approaches 2014 (ICMA) pp 150. De Silva, W. H., Kamaral, L. C. J., Mohotti, S. N. K. & Perera, K. L. N. S. (2014) Development and validation of an allelic ladder for D18S51 short tandem repeat (STR) locus. Wayamba International Conference (WinC 2014). pp 251. Kamaral, L. C. J., Perera, K. L. N. S., Dasanayake, P. N. & Perera S. A. C. N. (2013) Variation of Sri Lanka yellow dwarf coconut variety at microsatellite marker loci. Proceedings of the 69th Annual Sessions. SLAAS. Part 1, pp 40. Gunasekera, J. M. A., Jayasekera, G. A. U., Fernandopulle, N. D., Perera, K. L. N. & De Silva, A. D. (2010) Development of Transgenic Plants for Leaffolder (Cnaphalocrosis medinalis) Resistance in Local Rice Varieties. Annual Research Proceedings, University of Colombo. pp 120. Available from: http://192.248.16.117:8080/research/handle/70130/381?mode=full 1 2

Discover Genetech’s legacy through Dr. Maya Gunasekera’s vision, leading Sri Lanka in biotech and forensic innovation. Our Leadership Dr. Maya Gunasekera Founder of Genetech 1961 - 2006 Dr. Maya Gunasekera founded Genetech in 2002 to develop the field of biotechnology in Sri Lanka. She pioneered the use of DNA testing in forensic casework in Sri Lanka, and was involved in almost all DNA typing tests done in Sri Lanka until the time of her death. Research teams led by Maya developed the first DNA probe for the malaria vector, Anopheles culicifacies, introduced a new molecular test for the early diagnosis of dengue, pioneered genetic work on the Sri Lankan elephant and resolved the taxonomic status of a fruit bat species complex. In 1999, Maya gave expert evidence on DNA typing for the Hokandara murder trial making history as the first court case to accept DNA evidence in Sri Lanka. READ MORE Dhammika Gunasekera Owner of Genetech and Managing Trustee of Genetech Research Institute (GRI) Dhammika Gunasekera is the Owner of Genetech after the demise of his beloved wife Dr. Maya Gunasekera, the Founder of Genetech. He is also the owner of Dienge purveyors of handcrafted silver, fine art, gems and jewellery. Dhammika greatly values generosity and helps a large number of people and institutions financially. For example, he has given donations to the Sri Lanka Cancer Society, sponsored the Devapathiraja College (a school founded by his grandfather Sir Ernest De Silva) Rugby team in Rathgama, a rural area in Sri Lanka and met university tuition fees of students. READ MORE Dr. Nandika Perera Head of Forensic DNA Typing and Parentage Testing Dr. Nandika Perera joined Genetech in early 2004 soon after its inception and was part of the pioneering team led by late Dr. Maya Gunasekera, who introduced molecular diagnostics and DNA typing services to Sri Lanka. In subsequent years, he was promoted to the post of Senior Scientist and in 2010, he became the Head of the Parentage Testing Section. Currently, he is also the Head of Forensic DNA typing and has provided more than 2500 DNA typing reports to the Sri Lankan Judiciary. He together with his team has established several in-house molecular diagnostic tests including a test for prenatal diagnosis of thalassemia disease. READ MORE Samudi Mohotti Senior Scientist Samudi Mohotti commenced her professional career at Genetech as a Scientific Officer at the division of parentage testing in 2004. In subsequent years, she was promoted to the post of Senior Scientist and currently oversees the entire process of parentage testing. She is one of the most experienced scientists in the field of DNA typing and has contributed to submit over 3,000 DNA test reports for civil and criminal cases to the Sri Lankan Judiciary. She took part in the development of an allele frequency databases of autosomal STR markers for Sri Lankans ethnicities and co-authored a journal paper in a high-impact journal, Forensic Science International: Genetics. READ MORE

Explore Genetech’s technical services in Molecular Biology and Biochemistry. We provide precise sample analysis for researchers using established protocols. Learn about our analytical expertise today. Technical Services Genetech Research Institute offers technical services in Molecular Biology and Biochemistry-related ventures. We will provide analytical services as required by an external researcher: GRI will analyse samples provided by the external researcher using established protocols at GRI or detailed protocols provided by the external investigator. Samples will be analysed by the technical staff of Genetech and results will be reported to the external researcher. The external researcher will be charged a fee based on the number of samples and type of analysis. GRI will not be held responsible for any observations and conclusions made from this research.

Learn how to ace your Genetech interview: review your CV, know your qualifications, research the company and industry trends. Highlight your strengths, be authentic, dress appropriately, ask questions, and stay positive. Interview Tips The key to a successful job interview is in the preparation. Review The first thing you must do is look over your CV. If you have been invited to an interview, it is because we found your CV impressive. Qualifications It may sound simple, but know your qualifications. Interviewers will have an interest in modules you’ve covered and projects you have worked on. Think about how you can use your qualifications, skills and experience to prove that they align with our job description. Research Conduct some research about Genetech and specifically the role you are interviewing for, the interviewers will expect you to know a bit about the firm, and why you are interested in working for us. Future If you are aiming to pursue a career with Genetech, then you must have a good understanding of what is happening in the industry and how this may influence your future. Notes If it helps, you can take notes to your interview. There is nothing wrong with referring to notes but ensure you do not to read directly from them throughout the interview. Strengths We will be assessing your strengths throughout the interview. This will allow us to identify how you may perform in the role, and it makes it a much more enjoyable experience. This also provides you a great opportunity to reflect on what you are good at. At the interview, we want to get to know the real, authentic you. Thus, whilst you may want to learn about Genetech and go through your previous experiences ahead of your interview, there is no need to come with prepared responses. Furthermore, the examples you use when answering questions do not always have to be work based. Feel free to talk about relevant personal experiences where appropriate. The questions may be tapping into your strengths and there is no ‘correct’ thing to say. Thus, answer honestly based on what feels most natural to you. Impression You can create a good impression by knowing who you are going to meet and arriving on time. The interviewers will also be expecting you to wear suitable business wear. Use I Use ‘I’ instead of ‘We’ even if you talk about something you have done as a team. Keep in mind that we are interested in hearing about your achievements and what your contributions were. Body Language Maintain eye contact but you do not need to stare, and smile and enjoy your interview with a positive attitude. Moreover, relax and do not rush your answers. It is fine if you need a moment before answering a question. Be conscious of your hand use and avoid fidgeting with props, such as a notebook or pen, because it can make you lose concentration. If you make a mistake at the interview, do not worry because nobody is perfect. Worrying about your mistakes will have a negative impact on your performance. Question Do not be afraid to ask questions especially if you are not sure about something. It may demonstrate you have done your research and are genuinely interested. Be Positive Let go of the negative things in the past, aim positively but expect nothing in the future, and enjoy every moment without any attachment.

Explore career opportunities at Genetech in molecular biology, biotechnology, and more. Join our team of scientists, accountants, receptionists, and other professionals. Job Vacancies Apologies - We are not recruiting for any position at this time. Please check again later. You can follow our Facebook page, Instagram page and LinkedIn page to stay updated on job opportunities, internship opportunities, and the services we offer at Genetech.

Discover Genetech’s journal publications on genetic research and advancements in Sri Lanka, shaping the future of molecular diagnostics and biodiversity. Perera, N., Galhena, G. & Ranawaka, G. (2021) X-chromosomal STR based genetic polymorphisms and demographic history of Sri Lankan ethnicities and their relationship with global populations. Scientific Reports 11:12748. Available from: doi: 10.1038/s41598-021-92314-9 Perera, N., Galhena, G. & Ranawaka, G. (2021) Development of a 16 X-STR multiplex PCR system for kinship analysis and its applicability for the Sinhalese population in Sri Lanka. International Journal of Legal Medicine. 135:161–166. Available from: doi: 10.1007/s00414-020-02450-6 Nirmani, M. D., Perera, N. S. & Galhena, G. H. (2021) Population genetic dynamics of dengue vectors Aedes aegypti and Aedes albopictus in Sri Lanka: Baseline study for designing Wolbachia control method. International Journal of Tropical Insect Science. 41:1809–1821. Available from: doi: 10.1007/s42690-020-00395-2 Jayasinghearachchi, H. S., Francis, V. R., Sathkumara, H. D., Krishnananthasivam, S., Masakorala, J., Muthugama, T., De Silva, A. D. & Corea, E. M. (2021) Nonclonal Burkholderia pseudomallei Population in Melioidosis Case Cluster, Sri Lanka. Emerging Infectious Diseases. 27 (11). Available from: doi: 10.3201/eid2711.210219 Nirmani, M. D., Perera, N. S. & Galhena, G. H. (2020) The scope of Rp EPIC markers in population genetic studies: a preliminary study with dengue vectors. Journal of the National Science Foundation of Sri Lanka, 48(3): 275-288. Available from: doi: 10.4038/jnsfsr.v48i3.9311 Dharmarathne, H. A. K. M., Weerasena, O. V. D. S. J., Perera, K. L. N. & Galhena, G. (2020) Genetic characterization of Aedes aegypti (Diptera: Culicidae) in Sri Lanka based on sequence polymorphism of COI gene. Journal of Vector Borne Diseases 57 (2):151–158. Available from: doi: 10.4103/0972-9062.310871 Powell, L. A., Miller, A., Fox, J. M., Kose, N., Klose, T., Kim, A. S., Bombardi, R., Tennekoon, R. N., de Silva, A. D., Carnahan, R. H., Diamond, M. S., Rossmann, M. G., Kuhn, R. J. & Crowe, J. E. Jr. (2020) Human mAbs Broadly Protect against Arthritogenic Alphaviruses by Recognizing Conserved Elements of the Mxra8 Receptor-Binding Site. Cell Host & Microbe. 28(5), 699-711.e7. Available from: doi: 10.1016/j.chom.2020.07.008 Mutucumarana, C. P., Bodinayake, C. K., Nagahawatte, A., Devasiri, V., Kurukulasooriya, R., Anuradha, T., De Silva, A. D., Janko, M. M., Østbye, T., Gubler, D. J., Woods, C. W., Reller, M. E., Tillekeratne, L. G. & Lantos, P. M. (2020) Geospatial analysis of dengue emergence in rural areas in the Southern Province of Sri Lanka. Trans R Soc Trop Med Hyg. 114(6), 408-414. Available from: doi: 10.1093/trstmh/trz123 Grifoni, A., Voic, H., Dhanda, S. K., Kidd, C. K., Brien, J. D., Buus, S., Stryhn, A., Durbin, A. P., Whitehead, S., Diehl, S. A., De Silva, A. D., Balmaseda, A., Harris, E., Weiskopf, D. & Sette, A. (2020) T Cell Responses Induced by Attenuated Flavivirus Vaccination Are Specific and Show Limited Cross-Reactivity with Other Flavivirus Species. Journal of Virology. 94(10) Available from: doi: 10.1128/JVI.00089-20 Mapalagamage, M., Handunnetti, S. M., Wickremasinghe, A. R., Premawansa, G., Thillainathan, S., Fernando, T., Kanapathippillai, K., De Silva, A. D. & Premawansa, S. (2020) High levels of Serum Angiopoietin 2/1 Ratio at the Critical Stage of Dengue Hemorrhagic Fever in Patients and Association with Clinical and Biochemical Parameters. J Clin Microbiol. 58(4). Available from: doi: 10.1128/JCM.00436-19 Nirmani M. D., Perera, K. L. N. & Galhena, G. H. (2019) Use of ovitrap surveillance to assess dengue outbreak risks in selected dengue endemic areas in Sri Lanka. Sri Lankan Journal of Biology 4(2): 32-46. Available from: doi: 10.4038/sljb.v4i2.39 Tian, Y., Seumois, G., De-Oliveira-Pinto, L. M., Mateus, J., Herrera-de la Mata, S., Kim, C., Hinz, D., Goonawardhana, N. D. S., de Silva, A. D., Premawansa, S., Premawansa, G., Wijewickrama, A., Balmaseda, A., Grifoni, A., Vijayanand, P., Harris, E., Peters, B., Sette, A. & Weiskopf, D. (2019) Molecular Signatures of Dengue Virus-Specific IL-10/IFN-g Co-producing CD4 T cells and their Association with Dengue Disease. Cell Rep. 29(13), 4482-4495.e4. Available from: doi: 10.1016/j.celrep.2019.11.098 Burel, J. G., Pomaznoy, M., Lindestam Arlehamn, C. S., Weiskopf, D., da Silva Antunes, R., Jung, Y., Babor, M., Schulten, V., Seumois, G., Greenbaum, J. A., Premawansa, S., Premawansa, G., Wijewickrama, A., Vidanagama, D., Gunasena, B., Tippalagama, R., de Silva, A. D., Gilman, R. H., Saito, M., Taplitz, R., Ley, K., Vijayanand, P., Sette, A. & Peters, B. (2019) Circulating T cell-monocyte complexes are markers of immune perturbations. Elife. Available from: doi: 10.7554/eLife.46045.001 Grifoni, A., Moore, E., Voic, H., Sidney, J., Phillips, E., Jadi, R., Mallal, S., De Silva, A. D., De Silva, A. M., Peters, B., Weiscopf, D. & Sette, A. (2019) Characterization of Magnitude and Antigen Specificity of HLA-DP, DQ, and DRB3/4/5 Restricted DENV-Specific CD4+ T Cell Responses. Front Immunol. Available from: doi: 10.3389/fimmu2019.01568 Jayasinghearachchi, H. S., Corea, E. M., Krishnananthsivam, S., Sathkumara, H. D., Francis, V. R., Abeysekere, T. R. & De Silva, A. D. (2019) Whole-Genome Sequences of Eight Clinical Isolates of Burkholderia Pseudomallei from Melioidosis Patients in Eastern Sri Lanka. Microbial Resour Announc. 8(33). Available from: doi: 10.1128/MRA.00645-19 Kose, N., Fox, J. M., Sapparapu, G., Bombardi, R., Tennekoon, R. N., De Silva, A. D., Elbashir, S. M., Theisen, M. A., Humphris-Narayanan, E., Ciaramella, G., Himansu, S., Diamond, M. S. & Crowe Jr, J. E. (2019) A lipid-encapsulated mRNA encoding a potently neutralizing human monoclonal antibody protects against chikungunya infection. Science Immunology. 4(35). Available from: doi: 10.1126/sciimmunol.aaw6647 Tian, Y., Babor, M., Lane, J., Seumois, G., Liang, S., Goonawardhana, N. D. S., De Silva, A. D., Phillips, E. J., Mallal, S. A., da Silva Antunes, R., Grifoni, A., Vijayanand, P., Weiskopf, D., Peters, B. & Sette, A. (2019) Dengue-specific CD8+ T cell subsets display specialized transcriptomic and TCR profiles. The journal of clinical investigation. 129(4), 1727-1741. Available from: doi: 10.1172/JCI123726 Vimonish, R., Galhena, G. H., Perera, K. L. N. & Magamage, M. P. S. (2018) PCR based approach for detection of bovine babesiosis in suspected carrier cattle and vector ticks in Sri Lanka. Journal of Agricultural Sciences – Sri Lanka, 13(1):55–65. Available from: doi: 10.4038/jas.v13i1.8300 Raut, R., Corbett, K. S., Tennekoon, R. N., Premawansa, S., Wijewickrama, A., Premawansa, G., Mieczkowski, P., Rückert, C., Ebel, G. D., De Silva, A. D. & de Silva, A. M. (2018) Dengue type 1 viruses circulating in humans are highly infectious and poorly neutralized by human antibodies. Proc Natl Acad Sci USA . 116(1), 227-232. Available from: doi: 10.1073/pnas.1812055115 Tillekeratne, L. G., Bodinayake, C. K., Simmons, R., Nagahawatte, A., Devasiri, V., Kodikara Arachchi, W., Nicholson, B. P., Park, L. P., Vanderburg, S., Kurukulasooriya, R., De Silva, A. D., Østybe, T., Reller, M. E. & Woods, C. W. (2018) Respiratory Viral Infection: An Underappreciated Cause of Acute Febrile Illness Admissions in Southern Sri Lanka. Am J Trop Med Hyg . 100 (3), 672-680. Available from: doi: 10.4269/ajtmh.18-0699 Grifoni, A., Costa-Ramos, P., Pham, J., Tian, Y., Rosales, S. L., Seumois, G., Sidney, J., De Silva, A. D., Premkumar, L., Collins, M. H., Stone, M., Norris, P. J., Romero, C. M. E., Durbin, A., Ricciardi, M. J., Ledgerwood, J. E., de Silva, A. M., Busch, M., Peters, B., Vijayanand, P., Harris, E., Falconar, A. K., Kallas, E., Weiskopf, D. & Sette, A. (2018) Cutting Edge: Transcriptional Profiling Reveals Multifunctional and Cytotoxic Antiviral Responses of Zika Virus-Specific CD8+ T Cells. J Immunol . 201 (12), 3487-3491. Available from: doi: 10.4049/jimmunol.1801090 Mapalagamage, M., Handunnetti, S., Premawansa, G., Thillainathan, S., Fernando, T., Kanapathippillai, K., Wickremasinghe, R., De Silva, A. D. & Premawansa, S. (2018) Is Total Serum Nitrite and Nitrate (NOx) Level in Dengue Patients a Potential Prognostic Marker of Dengue Hemorrhagic Fever. Dis Markers . Available from: doi: 10.1155/2018/5328681 Fernando, S. J. A., Faiz, N. M., Handunnetti, S. M., De Silva, A. D., Dasanayake, W. M. D. K., Wickramasinghe, G. D., Karunatilake, R. M. C. H. & de Silva, N. R. (2018) Preliminary study on chronic granulomatous disease in Sri Lanka. Allergy Asthma Clin Immunol. 14, 37. Available from: doi: 10.1186/s13223-018-0264-7 Corea, E. M., de Silva, A. D. & Thevanesam, V. (2018) Melioidosis in Sri Lanka. Trop Med Infect Dis. 3(1). Available from: doi: 10.3390/tropicalmed3010022 Bodinayake, C. K., Tillekeratne, L. G., Nagahawatte, A., Devasiri, V., Kodikara Arachchi, W., Strouse, J. J., Sessions, O. M., Kurukulasooriya, R., Uehara, A., Howe, S., Ong, X. M., Tan, S., Chow, A., Tummalapalli, P., De Silva, A. D., Østbye, T., Woods, C. W., Gubler, D. J. & Reller, M. E. (2018) Evaluation of the WHO 2009 classification for diagnosis of acute dengue in a large cohort of adults and children in Sri Lanka during a dengue-1 epidemic. PLoS Negl Trop Dis . 12(2). Available from: doi: 10.1371/journal.pntd.0006258 Montoya, M., Collins, M., Dejnirattisai, W., Katzelnick, L. C., Puerta-Guardo, H., Jadi, R., Schildhauer, S., Supasa, P., Vasanawathana, S., Malasit, P., Mongkolsapaya, J., de Silva, A. D., Tissera, H., Balmaseda, A., Screaton, G., de Silva, A. M. & Harris, E. (2018) Longitudinal Analysis of Antibody Cross-Neutralization Following Zika and Dengue Virus Infection in Asia and the Americas. J Infect Dis . Available from: doi: 10.1093/infdis/jiy164 Premkumar, L., Collins, M., Graham, S., Liou, G. A., Lopez, C. A., Jadi, R., Balmaseda, A., Brackbill, J. A., Dietze, R., Camacho, E., De Silva, A. D., Giuberti, C., Dos Reis, H. L., Singh, T., Heimsath, H., Weiskopf, D., Sette, A., Osorio, J. E., Permar, S. R., Miley, M. J., Lazear, H. M., Harris, E. & de Silva, A. M. (2018) Development of Envelope Protein Antigens To Serologically Differentiate Zika Virus Infection from Dengue Virus Infection. J Clin Microbiol . 56(3). Available from: doi: 10.1128/JCM.01504-17 Page 1 of 3 Journal Publications 1 2 3

Learn about Psittacine Beak and Feather Disease (PBFD) and how Genetech offers a PCR-based test for early detection. Submit feather or blood samples for reliable PBFD screening. Psittacine Beak and Feather Disease (PBFD) What is PBFD? Psittacine Beak and Feather Disease (PBFD) is a viral infection caused by a circovirus, primarily affecting parrots, cockatoos, and other psittacine birds. This virus leads to feather abnormalities and changes in beak formation. PBFD spreads through feather dust, faeces, and contaminated surfaces. The infection can be deadly in young birds and, in some cases, adult birds, as they may carry the virus without showing symptoms. As there is no specific treatment for PBFD, early detection is crucial for effective management through stringent quarantine and hygiene practices. Sample Collection Process To submit a sample for PBFD screening, follow these steps: Pluck 5-6 feathers from the bird’s chest area. Place the feathers in an envelope or a plastic zip-lock bag. Label the envelope or zip-lock bag with your bird ID (name, ring number, cage number, or other preferred identification). Complete the sample acceptance form and submit it along with the samples (available at the Genetech Reception or downloadable here ). You can submit the samples in person or by courier to: Genetech 54 Kitulwatte Road, Colombo 00800 For mail or courier submissions, place the sealed samples and completed sample acceptance form inside an envelope. We will notify you once the samples have been received. What we offer At Genetech, we offer a PCR-based screening test for PBFD using feather or blood samples. Contact us View Price List Sample Acceptance Sheet

Learn essential techniques in gene technology and DNA fingerprinting. Open to A Level students and current undergraduates in biology, biotechnology, and biomedical science. Advanced Certificate Course in Molecular Techniques for DNA Fingerprinting For Graduates, Undergraduates, Pre-University and A/L Students Why choose this course? This course provides in-depth coverage of fundamental molecular techniques in gene technology, with a special focus on DNA fingerprinting—the gold standard for individual identification. Students will gain expertise in a broad range of essential molecular biology techniques, preparing them for successful careers in state-of-the-art laboratories worldwide. A certificate will be issued upon completion of the course. Who can register for this course? This course is ideal for undergraduates and graduates in biology, biotechnology, or biomedical science who are seeking to advance their postgraduate studies or enhance their career prospects. It is also highly beneficial for current and recently completed A/L students (Edexcel, Cambridge, and Local A/L) who aim to pursue higher education in these fields. Course Content The course encompasses both theoretical and practical aspects of the following. Basic setup of a molecular biological lab Handling biological samples for DNA fingerprinting Chelex and solid-phase DNA extraction methods DNA quantification Multiplex PCR Commercial kits for DNA profiling Agarose gel electrophoresis Capillary electrophoresis Generating and analysing DNA profiles SNPs for human identification Mitochondrial DNA analysis and X and Y chromosome testing Animal and plant forensics Sex determination and detection of chromosomal anomalies DNA sequence analysis Individual hands-on training will be provided. Duration and fees This course will run from 9.00 am to 4.00 pm on 10 weekdays. The programme fee will be LKR 64,500 which is to be paid before the registration in order to confirm and reserve your place. Places will be offered on a first come first served basis. Email now If you are interested in participating in this training programme, send us an email with your details to info@genetechsrilanka.com View FAQs Contact us View Inquiry Form

Explore a diverse range of services at Genetech, including paternity testing, molecular diagnostics, biology courses, food testing, DNA sequencing, and more. Our Services Molecular Diagnostics Sex Determination of Birds DNA Sequencing Product Development DNA Typing Animal Testing Oligonucleotide and Gene synthesis Student Projects GM and Other Food Testing Courses & Internships Customised Biotechnology Solutions Collaborative Research View Price List

Explore the extensive research contributions of Genetech Research Institute (GRI) through our journal publications and conference papers. Discover groundbreaking studies in genetic polymorphisms, kinship analysis, and population genetics, highlighting our commitment to advancing scientific knowledge in Sri Lanka and beyond. Journal Publications Perera, N., Galhena, G. & Ranawaka, G. (2021) X-chromosomal STR based genetic polymorphisms and demographic history of Sri Lankan ethnicities and their relationship with global populations. Scientific Reports 11:12748. Available from: doi: 10.1038/s41598-021-92314-9 Perera, N., Galhena, G. & Ranawaka, G. (2021) Development of a 16 X-STR multiplex PCR system for kinship analysis and its applicability for the Sinhalese population in Sri Lanka. International Journal of Legal Medicine. 135:161–166. Available from: doi: 10.1007/s00414-020-02450-6 Nirmani, M. D., Perera, N. S. & Galhena, G. H. (2021) Population genetic dynamics of dengue vectors Aedes aegypti and Aedes albopictus in Sri Lanka: Baseline study for designing Wolbachia control method. International Journal of Tropical Insect Science. 41:1809–1821. Available from: doi: 10.1007/s42690-020-00395-2 View More Conference Papers and Communications Nirmani, M. D., Perera, K. L. N. S. & Galhena, G. H. (2020) A preliminary virological surveillance of field-caught adult Aedes aegypti (Linnaeus) and Aedes albopictus (Skuse) mosquitoes in selected sites in the District of Colombo and Gampaha of Sri Lanka. Proceedings of Annual Research Symposium 2020, University of Colombo; 44. De Mel, W. D. Y., Illeperuma, R. J., Fernando, S. P., Pusweldeniya, B. M. J. & Padmalal, U. K. G. K. (2019) Genetic variation of Elephas maximus maximus in Maduru Oya national park in Sri Lanka, age 2019: International Conference on Agriculture, Green Economics and Energy, Sapporo, Japan, 2019. Perera, N., Galhena, G. & Ranawaka, G. (2019) Development of a novel X-chromosomal STR based dacaplex PCR assay for the kinship analysis of Sinhalese population. Proceedings of the Open University Research Sessions (OURS 2019), Open University of Sri Lanka, P19. Available from: https://ours.ou.ac.lk/wp-content/uploads/2019/12/Abastracts-Open-University-Research-Sessions-October-2019-19-20.pdf View More

Join our hands-on practical courses and gene technology workshops for A/L students and teachers. Hands-on training in PCR, DNA extraction, gel electrophoresis, and more. Fees start at Rs. 6,000. Min 10 students/session. Laboratory Practical Courses for A/L Students and Teachers One day workshop on gene technology Laboratory safety and handling of micropipettes Polymerase Chain Reaction (PCR) DNA extraction for human blood Preparation of agarose gels and agarose gel electrophoresis Exam-oriented Q & A discussion on Unit 7 of the Advanced Level syllabus Medium of Instruction: Bilingual (English/Sinhala) Fee: Rs. 5,000 per person Three day course on gene technology qPCR (Real time PCR) - Theory and Practicals Laboratory safety and handling of micropipettes Extraction of DNA from human blood and plants Preparation of agarose gels and agarose gel electrophoresis Polymerase Chain Reaction (PCR) and gel electrophoresis of PCR products Basics in DNA profiling, DNA fingerprinting and DNA typing Basics in applications of PCR in disease diagnosis Fee: Rs. 18 ,000 per person (Minimum 10 students per session) View FAQs Contact us If you are interested in doing this course at Genetech, please submit the Inquiry Form below or email us at info@genetechsrilanka.com to receive further details. View Inquiry Form

Discover specialized DNA typing services at Genetech, including paternity tests and forensic analysis, for precise identification and familial verification in Sri Lanka. DNA Typing Our passion to improve We pioneered the use of DNA typing for human identification for forensic casework and analysis of family relationships including parentage testing. We are a major supplier of this technology to the medico-legal community and the judicial system in Sri Lanka. Our reputation for integrity and reliability has made us the main provider of forensic DNA testing in the country. Over 4000 cases of disputed parentage and another 4000 criminal cases have had the advantage of DNA evidence through Genetech. What is DNA typing? DNA typing is a method of identifying individuals from the differences in their DNA. It is used for forensic casework as well as for determining familial relationships between individuals including paternity, maternity and siblingship. Advantages of DNA typing The science of DNA typing relies on technology that allows an individual's DNA to be examined and analysed. A person's DNA is unique: no two individuals (with the exception of identical twins) have the same DNA. Every cell in a person's body has the same DNA. Hence, DNA taken from any part of the body from the same individual will always be the same. DNA typing can be performed from many types of biological specimens including blood, saliva, sperm cells, muscle, teeth and bones. Thus, a person's DNA can be typed from very little tissue or body fluid. DNA typing is used for two major purposes: Identification of individuals from biological samples: This is mainly done in forensic casework, where it is possible to determine the identity of a criminal by typing the DNA left behind at the scene of the crime. Determination of familial relationships: This includes paternity testing, maternity testing, sibling testing, grand-parent testing, and even the identification of mutilated bodies. DNA typing is the best method of identifying individuals and determining familial relationships due to many reasons. It is extremely sensitive: with even a very small amount of tissue, the test can be performed successfully. It is also very accurate: it can give a test result with a very high degree of certainty. It is very reliable: the likelihood of obtaining a false result can be minimised, and the likelihood of making an error in the conclusion can be calculated. How does DNA typing work? In the DNA typing process, a DNA banding pattern or profile of an individual is first obtained from a tissue sample. The DNA profile is observed in the form of a set of DNA bands known as alleles. Each person has a maximum of two specific alleles for a given genetic location. This DNA profile is compared with the profile obtained from a sample taken from the scene of a crime. If the alleles in the two profiles match, then it can be said that the sample taken from the scene of the crime is from the individual that was tested. DNA typing services Child custody and maintenance: In cases where one parent is claiming the custody and maintenance of a child and the other parent is refusing to accept parentage. Proof of adultery: Especially in divorce cases where the paternity of the child is suspect, and the wife is being accused of adultery, DNA typing can be used to determine whether the husband is the father of the child. View all Cost We are happy to announce that after much research and optimisation, we have streamlined our DNA typing methods, and we are therefore able to provide DNA typing services at a reasonable cost. We perform the same DNA typing tests which are used by internationally recognised laboratories, and maintain the same standards of quality so that the conclusions made by us can be verified by any accredited forensic DNA typing laboratory in the world. Contact us View Price List Quality control DNA typing is a highly specialised procedure which requires knowledge and skill. Furthermore, for DNA typing evidence to be acceptable in a Court of Law, it has to meet certain quality standards, which have been well documented and followed by forensic DNA laboratories worldwide. Accordingly in 2010, we became the first DNA typing laboratory in Sri Lanka to achieve ISO 15189:2007 (now 15189:2012) accreditation from Sri Lanka Accreditation Board (SLAB). Read more Accuracy of evidence DNA testing is the most accurate and reliable means of identity verification and parentage testing. The degree of accuracy of the test will depend on the genetic diversity of the Sri Lankan population as well as the number of genetic locations (STR loci) which are tested. There is no mandatory number of STR loci required for a test, but the testing of nine STR loci or more is generally considered to be sufficiently accurate. We test up to 15 STR loci. Read more Ethical Guidelines DNA typing is performed ethically only with the informed consent of the individual whose DNA is being typed. The persons concerned will be informed about the consequences of the test. Where such consent cannot be given such as in the case of minors, the consent of the guardian has to be obtained. We will not undertake samples for parentage testing without written consent from all living parties who will be tested. Read more Please contact us for personalised support on parentage and testing of other family relationships.