Genetics is a branch of biology concerned with the study of genes, genetic variation, and heredity in organisms.
Over the past half-century, our understanding of genetics has grown rapidly and its application expanded. In the study of ancient history, it has been used extensively to trace the migration of prehistoric populations. Thousands of papers have been published enabling new theories to be developed.
Now, all that work has been called into question by Dr Eran Elhaik, Associate Professor at the Department of Biology, Lund University, Sweden. In a paper published in August 2022, he claims that Principal Component Analyses (PCA)-based findings in population genetic studies are highly biased and must be reevaluated. Watch this space.