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单词 ex-conjugant
释义

ex-conjugantn.

Forms: Also ex-conjugate.
Etymology: < ex- prefix1 + Latin conjugānt-em present participle of conjugāre (see conjugate v.); conjugate < conjugate v.Previous versions of the OED give the stress as: ex-ˈconjugant.
One of a pair of protozoa, bacteria, etc., that have recently been in conjugation. Also attributive or as adj.
ΚΠ
1902 Proc. Royal Soc. Edinb. 23 420 He succeeded in getting exconjugates to conjugate within that small number of divisions.
1903 Archiv f. Entwickelungsmechanik der Organismen 15 174 After separation, the two ex-conjugants have been isolated and their divisions carefully recorded.
1953 R. P. Hall Protozool. ii. 95 Exconjugant and non-conjugant lines of Paramecium caudatum and Pleurotricha lanceolata.
1960 New Biol. 31 109 The two paramecia, when they separate after conjugation (they are then known as ex-conjugants) have the same nuclear (genic) material.
1964 W. Hayes Genetics of Bacteria & their Viruses xxii. 557 A different approach is to carry out a pedigree analysis of single, exconjugant, recipient bacteria and their progeny with the aid of a micromanipulator.
This entry has not yet been fully updated (first published 1972; most recently modified version published online December 2020).
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