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binary fission

   Also found in: Dictionary/thesaurus, Legal, Encyclopedia, Wikipedia, Hutchinson 0.01 sec.
binary fission
n.
A method of asexual reproduction that involves the splitting of a parent cell into two daughter cells.

binary fission
[bī′nərē]
Etymology: L, bini, twofold, fissionis, splitting
the division of a cell or nucleus into two equal parts. It is the common form of asexual reproduction among bacteria, protozoa, and other unicellular organisms. Also called simple fission. Compare multiple fission.

fission [fish´un]
1. the act of splitting.
2. asexual reproduction in which the cell divides into two (binary fission) or more (multiple fission) daughter parts, each of which becomes an individual organism.
3. nuclear fission; the splitting of the atomic nucleus, with release of energy.
binary fission the halving of the nucleus and then of the cytoplasm of the cell, as occurs in protozoa.


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In the intestinal tract of insects, the absorbed trypomastigotes undergo transformations into spheromastigotes and epimastigotes that divide by binary fission.
The cells reproduce by binary fission, divide in a single plane, and there is no capsule: these characteristics together are diagnostic for the genus Synechococcus (Rippka et al.
National Laboratory indicate that this rare process, known as neutronless binary fission, occurs only 1 to 10 times per 10,000 fission events.
 
 
 
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