CFE Orientation Practice Test

Which of the following is an example of a genetically modified organism?

Organic strawberries Non-GMO corn Wild-type tomatoes Glo fish

Correct Answer:

Glo fish

Explanation:

Genetic modification means changing an organism’s DNA to add a trait that wouldn’t occur naturally. GloFish are engineered to carry a fluorescent protein gene from jellyfish (and sometimes coral) that makes them glow under certain light. That direct insertion of foreign DNA to create a new trait is what makes them a genetically modified organism. The other options describe organisms that are not engineered: organic strawberries are grown under organic farming standards and are not inherently modified; non-GMO corn is specifically not genetically altered; wild-type tomatoes are naturally occurring and unmodified. So the glowing fish is the example that involves actual genetic engineering.

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