Q.41 Gene flow occurs through generations. Gene flow can occur across language barriers in humans. If we have a technique of measuring specific allele frequencies in different population of the world, can we not predict human migratory patterns in pre-history and history? Do you agree or disagree? Provide explanation to your answer.

Yes, we agree. As the gene flow occurs through geographical barriers over generations, by

studying specific allelic frequencies in various populations of the world, we can predict the
human migratory patterns in pre-historic and historic era.


There have been projects undertaken such as human genographics project. Which uses
data from studies on specific genes/chromosomes/mitochondrial DNA to trace the
evolutionary history and migratory patterns of humans.