| 释义 |
mosaicism Biol.|məʊˈzeɪɪsɪz(ə)m|
[f. mosaic a.1 and n. + -ism.]
The quality or state of being mosaic (mosaic a.1 7).
1926Jrnl. Genetics XVI. 230 No attempt to represent analytically the genetical behaviour of irregular mosaicism in plants has been altogether satisfactory. 1932Genetics XVII. 39 The facts secured from the different breeding tests demonstrate that the mosaicism is due to an unstable translocation. 1947Nature 11 Jan. 66/2 Chemical treatment of female embryos [of Drosophila melanogaster] leads to high frequency of mosaicism. 1961[see Mongoloid a. and n. A. 2]. 1963Lancet 13 May 1028/2 The term mosaicism, in cytogenetic usage, describes a condition in which a substantial minority of cells differ from the majority in their chromosomal content. 1971Nature 11 June 388/2 We have recently had the opportunity to study the rare association of mixed gonadal dysgenesis in a female child and X/XY/XYY mosaicism in karyotypes from blood and fibroblast cultures. |