Understanding Evolution: your one-stop source for information on evolution
Resource library Teaching materials Evolution 101 Support this project

Teaching materials : Image library:

To save: right-click (Windows) or control-click (Mac) on the image and select "Save image."

Artificial selection of corn

Image caption:
Plants and animals are domesticated through artificial selection, which works like natural selection does, but with humans instead of nature doing the selecting. Here, humans plant only the plump teosinte kernels — the plants that grow from those seeds carry more genes for plumpness, but they still vary in many ways. Over many generations of selection, the frequency of desirable gene variants increases in the population — and so does the quality of the crop.

See the Understanding Evolution page where this image appears.

<< Back to search results

Image credit:
If you use this image in your own non-commercial project please credit it to the University of California Museum of Paleontology's Understanding Evolution (http://evolution.berkeley.edu).