WORLD DNA Day is celebrated every year on April 25 to honour the achievement of the Human Genome Project (HGP), which was completed in April 2003, and the ground-breaking elucidation of the model structure of DNA double helix which was published in Nature magazine on April 25,1953. After the US Congress passed a resolution designating April 25 as DNA Day, the National Human Genome Research Institute began celebrating the day.
The HGP was an international project aimed at discovering the sequence of human DNA and defining all genes that are found in the human genome. The HGP played a big role in explaining the genetics of humans and helped us understand a variety of fundamental questions, including the total number of genes that we have, how our cells function, how diseases develop and what actually happens when we become sick.