Teosinte is an ancient grain thought to have been selectively bred into maize 6,000 to 10,000 years ago. It has few kernels, and they are enclosed in a hard casing.
Early examples of biotechnology include breeding animals and crops, and using microorganisms to make cheese, yoghurt, bread, beer and wine. ...
Humans have been manipulating living organisms for thousands of years. Examples of early biotechnologies include domesticating plants and animals and ...
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