Essentials of Epigenetics

Epigenetics refers to a field of study concerned with the changes in DNA that do not involve modifications to the underlying sequence. It entails genetic control by factors other than a person's DNA sequence. Epigenetic modifications can activate or deactivate genes and determine which proteins are transcribed. The modifications have various effects on gene expression. The types of epigenetic changes include non-coding RNA, DNA methylation and histone modification. Epigenetic patterns may b...