Epigenetics is ?: (A) Alteration in nucleotide sequence, (B) Alteration in chromosome number, (C) Alteration in gene expression, (D) Alteration in chromosome size
Answer is C. Ans. is 'c' i.e., Alteration in gene expression Epigenetics is a heritable change in the level of gene expression, not caused by changes in DNA sequence. It includes changes like Histone modification or DNA methylation