The son can only inherit what his father leaves him in his Will. If the father wants his son to have monies; property or personal effects it will be in the Will. If the father and son have not been close and the father does not put him in the Will then the son will get nothing.
If there is no will, the estate will be distributed according to the laws of intestacy in the place of death. It may result in the son getting half the estate if he is a minor, particularly if the wife is not the mother of the son.
