What is a transgenic organism?

A transgenic organism refers to one that has undergone genetic modification to incorporate genes from other species. This process typically involves transferring specific genes to enhance certain traits, such as resistance to pests, improved nutritional content, or increased growth rates. For example, transgenic plants may contain genes from bacterial species that confer herbicide resistance, allowing them to thrive in areas where weeds are controlled by that herbicide.

In contrast, the other options describe different concepts. A revived extinct species pertains to efforts in de-extinction, which involves using genetic techniques to bring back organisms that no longer exist. A naturally occurring organism without genetic modifications simply exists in its natural state, while an organism that has undergone natural selection refers to the process by which traits that enhance survival and reproduction become more common within a population over generations. None of these definitions align with the specific characteristics of a transgenic organism.