So there is a loss of genetic diversity with the distance from Africa, " Rosenberg said.
他们在远离非洲的过程中丢失了一部分遗传变异，”Rosenberg说。
2
Poetry writing is under the influence of the cognizance of principal value, the change of cultural environment, and the diversity of writing fettle, which text distance derived from constantly.
A generalized distance coefficient based on information theory was given. The new information coefficient improved the increment of diversity and could be applied to cluster analysis.