Genome wide association study is an approach that involves rapidly scanning markers across complete sets of DNA, or genomes of numerous people to find differences associated to a particular type of disease. Once new differences are identified, then they are analysed by the researchers and cure for those variations are found.
This study helps to develop customized medicines depending on various factors that affect the subject, thereby reducing the risk of side effects and increasing the effectiveness.
The blood samples of two similar bodies are taken, of which one is affected with disease and the other is not. Then, the DNA of the subjects are collected from the blood samples and further study of the structures are done by trying to find the SNP’s, then those gaps are studied thoroughly, and a solution is found.
This process requires less number of human resources. Hence, it is cost effective. Here, precision is the key to success. Even a small error in calculation can cost loss of lives.