Definition

The branch of biology that studies how genes are turned on or off and how these changes can be passed down to future generations without altering the DNA sequence.

Example

Researchers are exploring the role of epigenetics in how environmental factors can influence gene expression.

Conversation

Have you heard about epigenetics and how it affects our health?

Yeah, I read a bit about it; it’s fascinating how genes can be turned on and off.

Exactly! It's crazy to think our environment can influence our genes through epigenetics.

I know, right? It really changes how we think about inheritance and genetics.

Synonyms & Antonyms

Root Explanation

Epigenetics is formed from "epi-" (meaning upon or above) and "genetics" (from Greek "genesis", meaning origin or birth). The term refers to the study of changes in organisms caused by modification of gene expression rather than alteration of the genetic code itself, essentially how factors can influence the expression of genes from above or upon the genetic material.

Memory Tip

Think of 'epi-' meaning 'upon' and 'genetics' relating to 'origin' or 'birth' — this helps you remember that epigenetics studies how external factors can influence gene expression.

Visually Confused Words