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In 2004, after 14 years of research, The Human Genome Project was concluded. 99,9% of the human genome was sequenced and we learned that people have between 20,000 and 25,000 genes.  Genes are seen as a map to people’s health and diseases; the ultimate source of our health problems and wellbeing. Expectations of what could be explained with genetic testing are high, however, genes are a universe of the unknown.  Even if a person has a predisposition for something, it is very often the environment which will or will not trigger it. Many diseases are polymorphous — more genes are included in their expression and severity.  We are far from knowing all the correlations. So where are we? Sooraj Ratnakumar is a scientist with a PhD in Biotechnology from the University of Cambridge. He is also the CEO of Swagene — an Indian company for medical genetics. Wondering what he thinks? Listen to the 9th episode of Medicine Today on Digital Health. Comments, suggestions welcome at tjasa.zajc@gmail.com or Twitter @zajctjasa

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