The molecular isolation of imprinted genes allowed more in depth studies to the mechanisms that lead to their special regulation. The first 3 imprinted loci had been described in the early nineties and also have since been studied intensely: the genes encoding the insulin-like growth aspect type-two receptor (Igf2r, Barlow https://patterndriveways37641.blogminds.com/not-known-facts-about-pattern-imprint-27031521