Pakistan, May 23 -- While GMOs have been available to consumers since the early 1990s and are a common part of today's food supply, research shows consumers have limited knowledge and understanding about what GMOs are, why they are used, and how they are made.

What are GMOs? "GMO" is a common term used to describe a plant, animal, or microorganism that has had its DNA changed through a process scientists call genetic engineering. Most of the GMO crops grown today were developed to help farmers prevent crop loss. There are ten GMO crops currently grown and sold in the U.S.: alfalfa, apples, corn, cotton, papayas, potatoes, soybeans, summer squash, and sugar beets.

Are GMOs safe to eat? Many federal agencies play an important role in ensu...