When scientists talk about "cloning", we're usually not talking about Dolly the sheep or Barbara Streisand's dogs. We clone a piece of DNA, often a gene, in order to study it. Learn how this technique is used in everyday science.
This video is part of the Bio-Dictionary for "The Explorer's Guide to Biology" (XBio for short), which is a bold re-imagining of the biology textbook for the 21st century. Visit explorebiology.org for free content that focuses on stories of scientific discovery.