Guanine/Cytosine Watson and Crick base pair.
Click this LINK to visit the original image and attribution information. Right click on the image to save the 800px teaching JPEG.
![Guanine/Cytosine Watson and Crick base pair.](image_science_archive_68/020400_68/186250_638px-GC_DNA_base_pair.svg_68.jpg)
Click this LINK to visit the original image and attribution information. Right click on the image to save the 800px teaching JPEG.