Every surviving individual on this Earth is incredibly unique in every way. Although man is descended from a common ancestor, he has gradually accumulated different transformations over a long period of time. These changes are a gradual process leading to a change in the gene frequency of a population and, over time, results in a different genetic makeup. An individual differs from others not only in terms of physical appearance like height, weight, skin color, nose shape, facial appearance, etc. but also in his eating habits, behavior and its culture. The physical variation observed among human populations surviving in different geographic regions of the world or even those within the same region is clear evidence of constant human evolution. Different human populations live in groups over large geographic regions and exhibit large sociocultural differences. attributes. Population biology is governed by a complex interaction of environmental and genetic factors. The genetic constitution of a population in interaction with the environment ...