Genomic Imprinting

**Definition:** The variable phenotypic expression of a GENE depending on whether it is of paternal or maternal origin, which is a function of the DNA METHYLATION pattern. Imprinted regions are observed to be more methylated and less transcriptionally active. (Segen, Dictionary of Modern Medicine, 1992)

**Tree numbers:** - G05.308.203.500

**Synonyms:** - Imprinting, Genetic - Genetic Imprinting - Parental Imprinting