What are organisms that carry genes from other organisms called?

Transgenic organisms are those that have had genes from another organism inserted into their genome through biotechnology methods. This genetic modification allows them to express traits or characteristics that are not naturally found in their species. For example, scientists might introduce a gene that allows a plant to produce a pesticide, improving its resistance to pests and reducing the need for chemical insecticides.

The term "transgenic" specifically refers to the successful incorporation of foreign DNA into an organism, resulting in a new, genetically altered individual. This process is widely used in agriculture, medicine, and research to produce organisms with desired traits or capacities.

In contrast, chimeric organisms refer to individuals composed of cells from two different zygotes, which is a different phenomenon. Cloned organisms are exact genetic replicas created from a single organism, and the term "difficult organisms" is not a recognized scientific term related to genetics or biotechnology.