You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Heritable changes in gene expression not caused by alterations in DNA sequence refers to: and explain in detail?
Epigenetics Means 'above genes'. Study of heritable changes in gene expression that donot involve changes to the underlying DNA sequence. This is a change in phenotype without a change in genotype. Epigenetic silencing (Genomic Imprinting) is one of the ways to turn genes off - contribute to differential expression. Major mechanisms of epigenetics DNA methylation (most common) Histone modifications (post translational)