| 释义 |
amorph, n. Genetics.|ˈeɪmɔːf|
[f. a- 10 + -morph.]
A mutant allele which has no activity compared with the wild-type allele.
1932H. J. Muller in Proc. 6th Internat. Congr. Genetics I. 236 The hypomorphs and amorphs are just the kind of mutants which the few remaining advocates of the presence-and-absence hypothesis..require as evidence. 1949Darlington & Mather Elem. Genetics vii. 152 Far from removing bristles, scute-I helps to produce them. It does the same job as the wild type, but less than half as effectively. Such a gene Muller calls a hypomorph or, in the extreme case, when it does nothing, an amorph. 1993Blood LXXXII. 656/1 The second type of Rhnull, which was first noted in a Japanese family, is called ‘amorph’ or ‘silent type’. |