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United States Department of Agriculture

Agricultural Research Service

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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.

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Last Modified: 8/13/2016
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