複選題34. Regarding to epigenetics which statement is (are) CORRECT? (A) Epigenetics refers to the study of inherited changes in the phenotype of a cell that results from changes in DNA sequence. (B) Epigenetic changes could be due to the consequences of the expression of master transcription factors. (C) Epigenetic changes could be due to the consequences of the expression of post- translational modification of histones. (D) Epigenetic changes could be due to the consequences of the expression of repressive complexes composed of long noncoding RNAs. (E) Both X-chromosome inactivation and heterochromatin repression belong to epigenetic regulation.