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Karyokinesis   Listen
noun
Karyokinesis  n.  
1.
(Biol.) The indirect division of cells in which, prior to division of the cell protoplasm, complicated changes take place in the nucleus, attended with movement of the nuclear fibrils; opposed to karyostenosis. The nucleus becomes enlarged and convoluted, and finally the threads are separated into two groups which ultimately become disconnected and constitute the daughter nuclei. Called also mitosis. See Cell development, under Cell.
2.
The changes that occur in the nucleus of a cell, especially movements of the chromosomes, in the process of cell division.






Collaborative International Dictionary of English 0.48








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"Karyokinesis" Quotes from Famous Books



... the dividing nuclei of the cells of the sporophyte generation of the higher plants exhibit a double number of chromosomes, while the dividing nuclei of the cells of the gametophyte generation exhibit the single number. In a fern-plant, for example, which is a sporophyte, every karyokinesis divulges the double number, while in the prothallium, which is the gametophyte generation, the single number appears. The doubling process is provided by the act of fertilization, where an antherozoid with the single ...
— Project Gutenberg Encyclopedia



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