cell division
cell division
cell division
cell′ divi`sion
n.
cell division
Noun | 1. | cell division - the process in reproduction and growth by which a cell divides to form daughter cells |
单词 | cell division | |||
释义 | cell divisioncell divisioncell divisioncell′ divi`sionn. cell division
cell divisioncell division:see cellcell,in biology, the unit of structure and function of which all plants and animals are composed. The cell is the smallest unit in the living organism that is capable of integrating the essential life processes. There are many unicellular organisms, e.g. ..... Click the link for more information. ; mitosismitosis , process of nuclear division in a living cell by which the carriers of hereditary information, or the chromosomes, are exactly replicated and the two copies distributed to identical daughter nuclei. ..... Click the link for more information. ; meiosismeiosis , process of nuclear division in a living cell by which the number of chromosomes is reduced to half the original number. Meiosis occurs only in the process of gametogenesis, i.e., when the gametes, or sex cells (ovum and sperm), are being formed. ..... Click the link for more information. . cell division[′sel di′vizh·ən]cell divisiondivision[dĭ-vizh´un]cell divisioncell divisionthe 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
Synonyms for cell division
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