Is extra genomic DNA present in prokaryotes

Question:

Is extra genomic DNA present in prokaryotes and eukaryotes? If yes, indicate their location in both the types of organisms.

Solution:

Yes, extra genomic DNA is present in prokaryotes and eukaryotes. In organisms like bacteria in addition to the genomic DNA, there is a small circular DNA outside the genomic DNA. They are called plasmids. This is a unique phenotypic character to such bacteria.

In eukaryotes, the extra genomic DNA is present in two organelles- Mitochondria and plastids.

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