This is a list of crops that have been improved through genetic modifications.

	Tomatoes:  In 1992 the FDA announced the Flavr Savr tomato.  The tomatoes were modified by a biotech company named Calgene.  The company produced a tomato that was allowed to ripen on the vine longer and still retain their firm skin when they make it to the supermarket.  Traditional tomatoes were picked off the tomato vines green and a chemical was applied to turn them red.
	Corn:  BT corn was introduced in 1996.  The difference between BT corn and non-BT corn is that BT corn produces it's own insecticide to guard against the European Corn Borer.  Non-BT corn is susceptible to the European Corn Borer and this caused a yield loss of 5-10 percent annually across the nation.  The introduction of BT corn has lead to increased yield and a lower price for consumers.
	Soybeans:  Roundup Ready soybeans have been on the market since 1996.  This type of soybean plant allows farmers the ability to spray a broad spectrum herbicide on their fields throughout the plants life. This eliminates the need to use several herbicides at different stages of the soybeans life.  This saves the farmers money and that gets passed on to the consumers.
	Potatoes:  There are two different kinds of potatoes that have been genetically modified.  One kind of potato has an increased resistance to pests and diseases that are common to potato plants.  They have a resistance to diseases and loss caused by nematodes, viruses, fungi, bacteria, insects, and herbicides.  The other kind of potato has an improved storage and processing characteristic. Some of the improvements to this potato is a decreased vulnerability to bruising and a changed starch content that allows for more efficient industrial starch processing.