Which of the following assertions regarding the genetic materials of prokaryotes and eukaryotes is incorrect?

• A. The genetic material in prokaryotes is not enclosed in the nuclear membrane.
• B. In eukaryotes there are no operons, each gene is transcribed separately into its mRNA.
• C. In prokaryotes, operons are groups of genes that can be transcribed together into a single mRNA.
• D. The DNA is wrapped around proteins called histones in both prokaryotes and eukaryotes.

Answer: (D)