Plants having foreign DNA incorporated into their cells are known as what?

Explanation

The correct answer is transgenic plants. These are plants that have been genetically modified to include DNA from another species, providing them with new traits. This is different from clones, which are simply identical copies of the parent organism without new DNA. Eugenic plants is not a recognized term in biology related to genetic modification. Mutants are organisms with mutations, which are changes in their own DNA, not necessarily involving foreign DNA.