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.
<u>I dont really know, but cell cycle has alot to do with DNA and mutations which can cause DNA not to be replicated </u>
Yes, A is correct. Taking a shower is not an automatic bodily function