Genes imprinting means that some genes violate the usual rule of Mendelian inheritance law and their expression is determined by the parents that contributed them.

• 基因印迹指的是某些基因呈不遵从孟德尔定律的亲源依赖性单等位基因表达，其另一等位基因不表达或表达极弱，具有这种现象的基因被称为印迹基因。