Propose an explanation for why operons evolved in prokaryotes. what advantage do organisms have when they group genes together with a regulatory system?

Operons afford the organism the opportunity to simultaneously regulate transcription of multiple genes, whose products are active in the same process.  Operons lead to the synthesis of groups of functionally related enzymes, usually from a single mRNA transcript hence makes regulation of the genes highly efficient.

regents of the university of california v. bakke, 438 u.s. 265 (1978), was a landmark decision by the supreme court of the united states. it upheld affirmative action, allowing race to be one of several factors in college admission policy.