Final answer:
Genetic processes involving existing domain structures can create proteins with different functional properties. Structural domains can be swapped or combined through genetic recombination, resulting in novel protein functions.
Step-by-step explanation:
Proteins with different functional properties can be created using genetic processes that involve existing domain structures. Structural domains are stable elements of a protein's structure that can fold independently of the rest of the protein chain.
These domains can be swapped or combined through genetic recombination, resulting in proteins with novel functions. Additionally, the combination of lower-level structural parts can lead to the formation of each protein domain, further expanding the functional boundaries of proteins.