binary fission


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binary fission

[′bīn·ə·rē ′fish·ən]
(biology)
A method of asexual reproduction accomplished by the splitting of a parent cell into two equal, or nearly equal, parts, each of which grows to parental size and form.
References in periodicals archive ?
Bacteria are prokaryotic, unicellular, and reproduce asexually by a process called binary fission. Bacteria usually have one circular chromosome (some bacteria such as Borrelia burgdorferi, the causative agent of Lyme disease, has a linear chromosome) and in some cases small, circular molecules of DNA called plasmids.
Measurements taken with the Gammasphere detector at the Lawrence Berkeley (Calif.) National Laboratory indicate that this rare process, known as neutronless binary fission, occurs only 1 to 10 times per 10,000 fission events.