A central question in biology is, how do we have > 200different cell types, complete with unique cell morphologies andfunctions, when all cells have the same DNA (the concept of genomicequivalence). Epigenetic regulation of gene transcription is oneway to explain this. Define what is meant by epigenetic regulationof gene transcription, including different general epigeneticmechanisms, and describe three different contexts of adevelopmental process that is associated with epigenetic changesthat we have discussed in class.
