== Removed about homogeneity == 

 Also, this stereotype is based on the fact that Asians have little variance in some of their physical traits. Physical features, such as eye color, hair color and skin color generally appear the same in Asians. In effect of the homogeneous appearance of the traits, other traits of Asians, that are prejudiced Whites, are homogeneous as well.   

 Some scientists believe that these physical homogeneous traits might not signify that other traits are homologous. 
 Skin, hair and eye color are largely contributed by the disparity of melanin levels in Whites. Thus, the reason that Whites have more variance in these physical features is due to their their greater variance in eumelanin levels.  
   Scientists believed that the greater variance of eumelanin levels in Whites was resulted from an adaptation when humans moved at higher latitudes with lower sunlight levels. http://www.washingtonpost.com/wp-dyn/content/article/2005/12/15/AR2005121501728_pf.html]  
 Therefore, some say that these homogeneous physical features of a race might not correlate how homologous other traits are, and argue that it is racist to detect genetic variance from these physical features.  

 Why is this removed? It is true that humans have to generate less melanin in climates with lower sunlight in order for the skin to synthesize adequate vitamin D. More importantly, the view that Asians are homogeneous because of their physical features, is popular.