| 释义 |
ploidy Biol.|ˈplɔɪdɪ|
[f. haploidy, polyploidy, etc.]
The number of homologous sets of chromosomes in a cell, or in each cell of an organism.
1947Genetics XXXII. 512 A state of indefinite ‘ploidy’. 1953Jrnl. Gen. Microbiol. VIII. 101 Another possibility is that there is a different degree of effective ploidy of the F+ and F- gametic cells, the F- gametic cell having a higher degree of ploidy (or, possibly, more nuclei) than the F+. 1961Lancet 5 Aug. 318/1 All metaphases have been analysed. When an exact account was impossible the ploidy level has been estimated. 1970Watsonia VIII. 140 As most of our counts are approximate the ploidy level rather than the chromosome number is given. 1976Nature 29 Apr. 785/2 To confirm the ploidy, both strains were grown axenically and their chromosomes were stained. |