| 释义 |
ˈsegregant, a. and n.
[ad. L. sēgregant-em, pres. pple. of segregāre to segregate.]
A. adj.
†1. Separated, divided. Obs. rare—1.
1647Ward Simple Cobler 5 Tolerations of divers Religions, or of one Religion in segregant shapes.
2. Genetics. Having or being a genotype derived by segregation; usu., one different from that of either parent.
1936Discovery May 161/1 The earlier investigators of heredity emphasised the discontinuous nature of inheritance... This is understandable when it is remembered that the segregant types, with which the earlier work was done, were of a very sharply contrasted nature. 1971New Scientist 8 July 92/1 When certain chromosomes were eliminated, the malignant phenotype reappeared and the segregant cells were again able to produce tumours. 1974Nature 27 Sept. 322/1 So called ‘tritypes’ involving any three of the four segregant genotypes should also be recovered frequently.
B. n. Genetics. A segregant organism.
1955Genetics XL. 894 No instances of adenineless segregants were obtained. 1976Nature 29 Apr. 785/1 All 28 haploid segregants of strain DP62..were indistinguishable from strain NP73. |