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The Prokaryotic Cell. Prokaryotes are unicellular organisms that lack organelles or other internal membrane-bound structures . Therefore, they do not have a nucleus, but, instead, generally have a single chromosome: a piece of circular, double-stranded DNA located in an area of the cell called the nucleoid. Most prokaryotes have a cell wall outside the plasma membrane.
What is the difference between Prokaryotic DNA and Eukaryotic DNA? â¢ In eukaryotes, DNA is found mostly in the cell nucleus, but some are in mitochondria and chloroplast while, in prokaryotes, it is found in the cytoplasm. â¢ DNA usually occurs as circular chromosomes in Prokaryotes while it is linear chromosomes in Eukaryotes. â¢ Eukaryote DNA has the histone protein, but prokaryote doesnât have that.