How are transgenic organisms different from cisgenic organisms?

Transgenic organisms are characterized by the insertion of genes from different species into their genomes. This process typically involves the use of recombinant DNA technology, where genes from a completely different organism—such as a plant, animal, or microbe—are introduced. The goal of creating transgenic organisms is often to confer new traits, such as resistance to pests or enhanced nutritional value.

In contrast, cisgenic organisms are produced by transferring genes within the same species or between closely related species, allowing them to maintain their genetic integrity more closely. This distinction is significant because it affects the regulatory landscape, public perception, and potential ecological impacts of the organisms.

Thus, the first choice accurately describes the fundamental difference in genetic composition between transgenic and cisgenic organisms.