Differential expression of a gene, depending on whether it was transmitted through the sperm or the egg.
Note: Imprinting is an epigenetic modulation of gene expression, thought to be regulated by attachment of methyl groups to the DNA, and by chromatin structure.
Source:
PAC, 2016, 88, 713. 'Glossary of terms used in developmental and reproductive toxicology (IUPAC Recommendations 2016)' on page 768 (https://doi.org/10.1515/pac-2015-1202)