Parental Imprinting of the Genes for IGF-II and Its Receptor

One of the basic tenets of Mendelian genetics is that autosomal traits are equivalently transmitted from each of the two parents. In recent years the molecular corollary of this has also been demonstrated for the majority of the genes studied: Both copies of each autosomal gene are equivalently expressed at the mRNA level, regardless of the parent from which each was derived.