What is the difference between epigenetics and mutations in terms of their impact on gene expression and inheritance?

Epigenetics refers to changes in gene expression that do not involve changes to the underlying DNA sequence, while mutations are changes in the DNA sequence itself. Epigenetic changes can be reversible and can affect how genes are turned on or off, influencing gene expression and inheritance without altering the DNA sequence. Mutations, on the other hand, are permanent changes to the DNA sequence that can lead to altered gene function and inheritance patterns.