An official website of the United States government
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
 Image Number D1784-2 |
Maize varies widely in carotenoid content, which affects the grains’ color. The white kernels here have almost no carotenoids, while the orange ones are almost as high in them as carrots. But color does not necessarily indicate beta-carotene levels, so researchers look for beta-carotene differences at the gene level.
Photo by Tobert Rocheford.
