“A race is a large population of individuals who have a significant fraction of their genes in common and can be distinguished from other races by their common gene pool.”

        Here is another definition of race that is given by the Vogel & Motulsky. According to the definition the author describe that there is also possibility that the characteristics of the person changes with the passage of time that is not present in the person before.  Our scientist also research about it that from Neanderthals to medieval kings’ genome of the long dead. As our DNA is a storage device that stores three billion letters or codes. Gene pool could respond to selection genetics homeostasis determines. This concept lead to the strong reinforcement which the genotype of the individual is a complete as well as the unit is form by the genes of a gene pool. Integration is defined as it is the process in which genes harmoniously collaborate in the gene pool.  In a single gene pool to the amount there is a definite upper limit of genetic diversity that might be accommodated [4].

References  of gene pool.