plasmagenen.
/ˈplazmədʒiːn/, U.S. /ˈplæzməˌdʒin/ Biology.
In some theories: an entity in the cytoplasm of a cell which carries genetic information that can pass to the next generation.
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the world > life > biology > biological processes > genetic activity > genetic components > [noun] > factor
determinant1893
factor1901
determiner1909
sex factor1909
rate factor1927
plasmon1932
plasmagene1939
resistance transfer factor1960
rho1969
1939 C. D. Darlington Evol. Genetic Syst. xx. 121 The particles in the nucleus are genes; those in the plastids and cytoplasm may perhaps be treated more rigorously if we also think of them as genes—plastogenes and plasmagenes.
1963 E. Mayr Animal Species & Evol. vii. 172 Like the chromosomal genes, plasmagenes seem to consist of nucleic acid molecules (including possibly RNA).
1977 Proc. Royal Soc. B. 196 15 More conventional geneticists opposed the idea of a novel cytoplasmic system of heredity..and interpreted kappa not as a plasmagene but as a symbiotic microorganism.
1988 Nature 18 Feb. 574/2 Sonneborn postulated the existence of ‘plasmagenes’, replicating in the cytoplasm but drawing some information from the nucleus.
Derivatives
plasmaˈgenic adj. of, relating to, or designating a plasmagene.
ΘΚΠ
the world > life > biology > biological processes > genetic activity > genetic components > [adjective] > factor
factorial1907
multifactor1916
multifactorial1920
plasmagenic1950
1950 Heredity 4 17 The existence of plasmagenic sub~units in any one of the self-duplicating, cytoplasmic structures has not yet been established.
1968 J. A. Serra Mod. Genetics III. xix. 37 Probably infection is produced by a particle of the plasmagenic type.
This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022).
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n.1939