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.
Dpp wing expression. en Distribution pattern of the morphogen Decapentaplegic in the Drosophila wing imaginal disc own Dragynbob Developmental biology Drosophila
Page 2023 Free-images.com. All images are Public Domain