As the genetic characteristics that are clearly differences and recognize the type of style that is easy to village schools. Controlled by fewer pairs of genes do not change by the influence of the environment is the quality characteristics.
The genetic characteristics that are distinct and clearly classifying the appearance to be amongst it. Is controlled by a few genes are altered by environmental influences as quality characteristics.
A genetic difference clearly and discrimination of the show ให้เป็นหมู่ easily. Controlled gene pairs, not little variation by the influence of the environment is the quality.