Answer:
by studying the number and organization of operons by reading the genome sequence
Step-by-step explanation:
Operon is a set of genes in prokaryotes and some eukaryotes that are functionally related, contiguous and coordinated, all expressed in only one messenger RNA. That is, it consists of the promoter, the operator and the structural genes. The operon is a very important structure in the study of genetics and related areas, scientists are able to research them by studying the number and organization of operons by reading the genome sequence.