| 单词 | tetrasomy | 
| 释义 | > as lemmasˈtetrasomy   ˈtetrasomy n. tetrasomic state. ΘΚΠ the world > life > biology > biological processes > genetic activity > genetic components > 			[noun]		 > chromosome > types of chromosome > condition trisomy1930 monosomy1931 polyteny1942 tetrasomy1961 nullisomy1966 1961    Lancet 23 Sept. 724/1  				Monosomy, trisomy, or even tetrasomy have very little functional effect. 1977    H. Zellweger  & J. Simpson Chromosomes of Man p. xii  				Trisomy = 46 + 1 chromosome. Tetrasomy = 46 + 2 chromosomes of the same type. < as lemmas  | 
	
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