分裂 (生物学) Fission (biology)
（重定向自Reproduction by division）
![原核生物二分裂的过程](/Images/godic/202502/07/Binary_Fission0157.png")
分裂（英语：Fission）在生物学中是指一个细胞（或身体、种群或物种）分为两个或多个部分，以及这些部分再生为细胞（身体、种群或物种）。二分裂（英语：Binary fission）产生两个细胞、种群或物种等，而复分裂（英语：multiple fission）产生多于两个的细胞、种群或物种等。
Reproduction by division
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英语百科
Fission (biology) 分裂 (生物学)
（重定向自Reproduction by division）
![Binary fission in a prokaryote
1. The bacterium before binary fission is when the DNA is tightly coiled.
2. The DNA of the bacterium has uncoiled and replicated.
3. The DNA is pulled to the separate poles of the bacterium as it increases size to prepare for splitting.
4. The growth of a new cell wall begins to separate the bacterium.
5. The new cell wall fully develops, resulting in the complete split of the bacterium.
6. The new daughter cells have tightly coiled DNA rods, ribosomes, and plasmids; these are brand new organisms.](/Images/godic/202502/07/Binary_Fission_2.svg0157.png")
![Biparticion o fisión binaria.](/Images/godic/202502/07/Binary_fission_es.svg0157.png")
![Fisión binaria](/Images/godic/202502/07/Binary_fission_anim0158.gif")
![Étapes de la division binaire](/Images/godic/202502/07/Scissiparité.svg0158.png")
In biology, fission is the division of a cell (or body, population, or species) into two or more parts and the regeneration of those parts into separate cells (bodies, populations, or species). Binary fission produces two separate cells, populations, species, etc., whereas multiple fission produces more than two cells, populations, species, etcetera