False- The chromosome is NOT a small circular segment of dna found in the cytoplasm of prokaryotes that is capable of independent replication and usually contains nonessential genes. The correct answer is Plasmids.
A plasmid is a small circular DNA molecule found in bacteria and some other microscopic organisms. Plasmids are physically separate from chromosomal DNA and replicate independently.
It is now known that small circular chromosomes, called extranuclear, or cytoplasmic, DNA, are located in two types of organelles found in the cytoplasm of the cell. These organelles are the mitochondria in animal and plant cells and the chloroplasts in plant cells.
Therefore, plasmids are small circular segment of dna found in the cytoplasm of prokaryotes that is capable of independent replication and usually contains nonessential genes.
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