Conferring of epigenetic patterns onto offspring is called genomic imprinting.Genomic imprinting would likely be most affected by globally inhibiting the gene(s) for

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DNA methylation and demethylation are key factors in establishing and maintaining epigenetic patterns during gamete formation and early embryonic development. Inhibiting the genes for DNA methyltransferase and demethyltransferase would disrupt these processes and likely affect genomic imprinting the most. The other choices may have some impact on epigenetic regulation, but not as significantly or directly as DNA methylation and demethylation.

Conferring of Epigenetic Patterns onto Offspring Is Called Genomic Imprinting