What Can Polygenic Inheritance Explain?
Between multiple genes are close relatives (including three relatives) or measured in many quantitative traits similar to each other (eg height, weight, size and shape of the nose, facial features, blood pressure, intelligence). A lot of bell characters Junan curve distribution, and by several genes that determine the distribution of similar traits. Each gene, or enhance the character, or weakened, and play a role other than Canada means nothing to do with the other genes. In the distribution curves of the two extremes are very less, many people are in the middle of the curve, because a lot of people do not inherit the General Assembly the same direction sometimes. Environmental factors on the final results will strengthen or weaken the role of production, also produces a normal distribution. Many relatively common congenital anomalies and familial disease does not follow single gene inheritance (Mendelian inheritance). They are closer and more genes, involved and non-involvement with
