Prokaryotes can have small, self-replicating circular pieces of DNA known as:

• A. plasmids
• B. mitochondria
• C. chromatids
• D. nucleosomes

Answer: (A)

Verified step by step guidance

1. Understand the question is asking about small, self-replicating circular pieces of DNA found in prokaryotes.
2. Recall that prokaryotes typically have a single circular chromosome, but they can also contain additional small circular DNA molecules.
3. Identify that these small circular DNA molecules are called plasmids, which replicate independently of the chromosomal DNA.
4. Eliminate other options: mitochondria are organelles found in eukaryotes, chromatids are duplicated chromosomes during cell division, and nucleosomes are DNA-protein complexes involved in DNA packaging.
5. Conclude that the correct term for these small, self-replicating circular DNA pieces in prokaryotes is plasmids.