Bacteria and Nuclei
Country: United States
Date: April 2006
Why do some bacteria not have a nucleus?
Bacteria are prokaryotic organisms which by definition contain no nucleus.
Instead, they contain a large circular DNA molecule which can carry
information for several thousand genes.
Ron Baker, Ph.D.
Bacteria are primitive life forms that did not evolve to put things in neat
No bacteria have nuclei. They are prokaryotes, which translates to "before
the nucleus". Their DNA is found in the cytoplasm.
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Update: June 2012