| 单词 | reduction division | 
| 释义 | > as lemmasreduction division   reduction division  n. Biology the division of meiosis during which separation of homologous chromosomes occurs (see sense  14h); (also) the process of meiosis as a whole. ΘΚΠ the world > life > biology > biological processes > genetic activity > 			[noun]		 > stages of mitosis or meiosis > reduction reduction1891 reduction division1891 pseudoreduction1899 postreduction1905 prereduction1905 1891    Jrnl. Royal Microsc. Soc. 461  				There is a ‘reduction-division’, for twelve chromosomes are found in each new cell. a1933    J. A. Thomson Biol. for Everyman 		(1934)	 II. 971  				This is effected by the rare kind of cell-division which is called meiosis or reduction-division, in which the number of chromosomes is reduced by a half. 1971    D. J. Cove Genetics i. 7  				This type of cell division whereby a diploid cell can give rise to haploid cells is called reduction division. 1997    G. S. Helfman  et al.  Diversity of Fishes xx. 352/2  				Hybridogenetic females..produce haploid eggs that, during the reduction division of meiosis, keep maternal genes and discard paternal genes. < as lemmas  | 
	
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