Prokaryotic Cell Division | Cell Reproduction | Unit 2. The Cell

Chapter: Prokaryotic Cell Division
Collection: Cell Reproduction
Unit 2. The Cell
Book: Biology

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In both prokaryotic and eukaryotic cell division, the genomic DNA is replicated and then each copy is allocated into a daughter cell. In addition, the cytoplasmic contents are divided evenly and distributed to the new cells. However, there are many differences between prokaryotic and eukaryotic cell division. Bacteria have a single, circular DNA chromosome but no nucleus. Therefore, mitosis is not necessary in bacterial cell division. Bacterial cytokinesis is directed by a ring composed of a protein called FtsZ. Ingrowth of membrane and cell wall material from the periphery of the cells results in the formation of a septum that eventually constructs the separate cell walls of the daughter cells.

00:00 Prokaryotic Cell Division
01:16 Binary fission
03:29 Evolution connection
05:20 Section summary

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