Genomic imprinting is the epigenetic phenomenon by which certain genes are expressed in a parent-of-origin-specific manner. If the allele inherited from the father is imprinted, it is thereby silenced, and only the allele from the mother is expressed.f the allele from the mother is imprinted, then only the allele from the father is expressed. Forms of genomic imprinting have been demonstrated in fungi, plants and animals.
See more synonyms on Thesaurus.com. verb (used with object), invoked, invoking. 1. to call for with earnest desire; make supplication or pray for: to invoke God's mercy.
Definition of defense for English Language Learners. : 1  the act of defending someone or something from attack. : 2  something that is used to protect yourself, your country, etc. : 3  the act of speaking or writing in support of someone or something that is being attacked or criticized.