cell division


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division

 [dĭ-vizh´un]
the act of separating into parts.
cell division fission of a cell, the process by which cells reproduce.

cell division

n.
The process by which a cell divides to form two daughter cells. Upon completion of the process, each daughter cell contains the same genetic material as the original cell and roughly half of its cytoplasm.

cell division

the continuous process by which a cell alternates between a long interphase period and mitosis. Mitosis involves four stages: prophase, metaphase, anaphase, and telophase. Cell division does not occur in discrete steps: each phase is part of a continuous process that may require hours for its completion. During the interphase period new deoxyribonucleic acid, ribonucleic acid, and protein molecules are synthesized before the start of the next prophase. Compare meiosis. See also mitosis.

cell division

the division of a cell into two new cells during growth or reproduction. The new cells are called daughter cells. In PROKARYOTES, two identical cells are produced by BINARY FISSION. In EUKARYOTES, cell division is more complicated because the genetic material is located on CHROMOSOMES inside the nucleus, being composed of two distinct processes that usually occur together; (a) nuclear division (MITOSIS producing two identical nuclei, or MEIOSIS producing four nuclei with a halving of the genetic complement) and (b) cytoplasmic division (CYTOKINESIS).

cell division

the process by which cells reproduce; fission of a cell.
References in periodicals archive ?
If MCM loading isn't completed successfully prior to cell division, there'll be a risk of major DNA mutations and death for the resulting daughter cells.
However, the scientists saw the opposite finding in mouse colons, which had a lower number of stem cell divisions than in their small intestines, and, in mice, cancer incidence is lower in the colon than in the small intestine.
While trying to understand why this synchronisation has not been seen before they discovered that the protocol used by circadian researchers to reset the clocks in cells so that their clocks progress in step with each other disrupted the 1:1 synchronization between the clocks and pushed them over into a new pattern in which there were 3 cell divisions every two clock periods.
The onset of senescence reactivates these genes, shutting down cell division.
Team leader Dr Stephen Davis said: "We've blocked cell division in the hair follicle and blocked the process of cell death.
As the process of cell division began, the chromatin collected into short, threadlike objects, which eventually came to be called chromosomes (from Greek words meaning "colored bodies").
One inactivates the estrogen, removing it as a stimulator of cell division.
Uncontrolled cell division in the body is a process by which tumours form and hence is a hallmark of cancer.
The research team at Institut de Recherches Cliniques de Montreal hypothesized that the orientation of stem cell division influences cell diversification.
Now scientists at Georgia Health Sciences University and the California Institute of Technology have discovered a shorter form they've dubbed Chk1-S ("S" stands for short) that essentially neutralizes its longer sibling so cell division can proceed.
Mutations in a gene that helps regulate cell division are responsible for some inherited cases of a fatal lung disease.

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