This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
DNAstructureandbases. Description The structure of DNA Source genome gov shtml genome gov file All of the illustrations in the Talking Glossary of Genetics are freely available and may be used without special permission genome gov cfm pageID SVG multilangual version PDUSGov DNA helixstructures Diagrams in English