Which of the following is true of prokaryotic cells?

• A. They have a complex cytoskeleton.
• B. They lack a membrane-bound nucleus.
• C. They contain mitochondria.
• D. They possess multiple linear chromosomes.

Answer: (B)

Verified step by step guidance

1. Understand the basic characteristics of prokaryotic cells. Prokaryotic cells are simpler than eukaryotic cells and are typically smaller.
2. Recognize that prokaryotic cells do not have a membrane-bound nucleus. Instead, their genetic material is located in a region called the nucleoid.
3. Identify that prokaryotic cells lack membrane-bound organelles such as mitochondria. This is a key difference from eukaryotic cells.
4. Note that prokaryotic cells usually have a single circular chromosome, rather than multiple linear chromosomes found in eukaryotic cells.
5. Conclude that the statement 'They lack a membrane-bound nucleus' is true for prokaryotic cells, based on the characteristics discussed.