| 释义 |
transdetermiˈnation Biol.
[f. trans- 1 + determination.]
An alteration of the course of development of an imaginal disc during the culture of Drosophila tissue so that it gives rise to a structure that normally develops from a different disc.
1965E. Hadorn in Genetic Control of Differentiation (Brookhaven Conf. Rep. BNL-C-44) 157 Since the allotypic organs appear in the offspring of cells which have been first autotypically determined, a change in determination must be postulated. We call this event trans⁓determination. 1978Nature 2 Feb. 403/2 In general their state of determination (leg, wing, genital, and so on) is conserved during culture, but occasionally a so-called transdetermination occurs whereby a certain type of disk changes to another state of determination. |