* * *genomic imprinting n genetic alteration of a gene or its expression that is inferred to take place from the observation that certain genes are expressed differently depending on whether they are inherited from the paternal or maternal parent called also genetic imprinting, imprinting
* * *differential expression of a gene or genes as a function of inheritance from the male versus the female parent, e.g., a deletion on chromosome 15 that causes Prader-Willi syndrome if inherited from the father causes instead Angelman syndrome if inherited from the mother. Imprinting appears to be controlled by DNA methylation patterns that are not erased during gametogenesis.
Medical dictionary. 2011.
Look at other dictionaries:
Genomic imprinting — is a genetic phenomenon by which certain genes are expressed in a parent of origin specific manner. It is an inheritance process independent of the classical Mendelian inheritance. Imprinted genes are either expressed only from the allele… … Wikipedia
genomic imprinting — genomic imprinting. parental imprinting (cм.). (Источник: «Англо русский толковый словарь генетических терминов». Арефьев В.А., Лисовенко Л.А., Москва: Изд во ВНИРО, 1995 г.) … Молекулярная биология и генетика. Толковый словарь.
Genomic Imprinting — Genomische Prägung (engl. genomic imprinting) ist ein Vererbungsprinzip unabhängig von der klassischen mendelschen Vererbung (Gene, Allele): Gene, die dem Genomic Imprinting unterliegen (imprintete Gene), werden abhängig von ihrer elterlichen… … Deutsch Wikipedia
genomic imprinting — Parent specific expression or repression of genes or chromosomes in offspring. There are an increasing number of recognized chromosomal imprinting events in pathological conditions: eg. preferential transmission of paternal or maternal… … Dictionary of molecular biology
genomic imprinting — noun see imprinting II … Useful english dictionary
Imprinting — may mean: * Genomic imprinting, a mechanism of regulating gene expression * Imprinting (psychology), in psychology and ethology * Molecular imprinting, in polymer chemistry * Metabolic imprinting, the phenomenon by which the metabolism of the… … Wikipedia
Imprinting — Genomische Prägung (engl. genomic imprinting) bezeichnet das Phänomen, dass die Expression von Genen davon abhängen kann, von welchem Elternteil das Allel stammt. Dieses Vererbungsschema steht im Widerspruch zur klassischen mendelschen Vererbung … Deutsch Wikipedia
Imprinting, genomic — The phenomenon of parent of origin gene expression. The expression of a gene depends upon the parent who passed on the gene. For instance, two different disorders – Prader Willi syndrome and Angelman syndrome are due to deletion of the same … Medical dictionary
imprinting — A particular kind of learning characterized by its occurrence in the first few hours of life, and which determines species recognition behavior. genomic i. epigenetic process that leads to inactivation of paternal or maternal allele of certain… … Medical dictionary
imprinting — See genomic imprinting … Dictionary of molecular biology