Final answer:
The final products of a gene are protein and RNA. Gene expression involves the transcription of DNA into RNA and the translation of RNA into protein.
Step-by-step explanation:
The final products of a gene are Protein and RNA. The process of gene expression involves the transcription of DNA into RNA and the translation of RNA into protein. This process follows the central dogma of molecular biology, which states that genetic information flows from DNA to RNA to protein.