Genomic imprinting refers to an epigenetic phenomenon in which the expression of a gene depends on the parent it's inherited from. Some genes are expressed in a parent-specific manner, meaning they're active only when inherited from the mother or the father.
DNA Methylation Dynamics in the Female Germline and Maternal-Effect Mutations That Disrupt Genomic Imprinting
Domain Regulation of Imprinting Cluster in Kip2/Lit1 Subdomain on Mouse Chromosome 7F4/F5: Large-Scale DNA Methylation Analysis Reveals That DMR-Lit1 Is a Putative Imprinting Control Region