Read this: A broad operational definition is sometimes used to encompass the complexity of these diverse phenomena, where a gene is defined as a union of genomic sequences encoding a coherent set of potentially overlapping functional products. This definition categorizes genes by their functional products (proteins or RNA) rather than their specific DNA loci, with regulatory elements classified as gene-associated regions.

What is the broad operational definition of a gene?
What is the answer? (If it cannot be answered, return "unanswerable")
a union of genomic sequences encoding a coherent set of potentially overlapping functional products