Stretching DNA

Explore stretching just a single strand of DNA using optical tweezers or fluid flow. Experiment with the forces involved and measure the relationship between the stretched DNA length and the force required to keep it stretched. Is DNA more like a rope or like a spring?

Discipline: Biology
Topic: Stretching DNA
Product: PhET Labs Interactive Simulations
Vendor: PhET Labs
Cost: All PhET simulations are available free of charge from the PhET Website
Technical requirements: Java and Flash
Accessibility info: University of Colorado Boulder accessibility page
For additional information contact phethelp@colorado.edu
Link to Lab: Stretching DNA
Reviews: Peer Reviews in MERLOT
MERLOT Resources: MERLOT material detail page for PhET Labs
Instructional materials: instructor and lab manuals available online from PhET Websites
Description: All of PhET simulations are extensively tested and evaluated
Case studies: PhET Research Page

Over One Hundred Million Simulations Delivered: A Case Study of the PhET Interactive Simulations
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