Which of the following characteristics is most commonly associated with prokaryotic microorganisms?

• A. Complex multicellular organization
• B. Presence of mitochondria
• C. Linear chromosomes
• D. Lack of a membrane-bound nucleus

Answer: (D)

Verified step by step guidance

1. Understand the defining features of prokaryotic microorganisms. Prokaryotes are unicellular organisms that lack a membrane-bound nucleus and other membrane-bound organelles.
2. Review the options given: Complex multicellular organization, Presence of mitochondria, Linear chromosomes, and Lack of a membrane-bound nucleus.
3. Recall that complex multicellular organization is typical of eukaryotes, not prokaryotes, which are mostly unicellular.
4. Recognize that mitochondria are membrane-bound organelles found in eukaryotic cells, absent in prokaryotes.
5. Note that prokaryotic chromosomes are usually circular, not linear, and the key characteristic is the absence of a membrane-bound nucleus.