Prokaryotic and eukaryotic cells differ in their organelles and origins. The nucleus is present in the eukaryotic cell but not in the prokaryotic cell. Thus, option D is correct.
What is a nucleus?
A nucleus is an organelle present in the cell and an essential part as it contains the genetic material of the organism. It is only found n eukaryotic cells and is absent in prokaryotic cells.
In prokaryotic cells instead of the nucleus, the genome is found lying in the cytoplasm not enclosed or covered by any membrane. Genetic material, ribosomes, and cell membranes are found in both eukaryotes and prokaryotes.
Therefore, option D. nucleus is absent in prokaryotes.
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