In a bacterial cell, DNA plasmids are found in the cytoplasm. They are small, circular DNA molecules that exist independently of the bacterial chromosome, which is located in the nucleoid region within the cytoplasm. Plasmids replicate autonomously and can be present in multiple copies within a single bacterial cell. They often carry genes that provide advantageous traits, such as antibiotic resistance. Unlike chromosomal DNA, plasmids are not enclosed within a membrane-bound nucleus since bacteria lack a nucleus, so their DNA—including plasmids—is located freely in the cytoplasm.