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1
Collected Papers - Osborn Zoological Society, Yale University
N. A. S. reorganization of the cell (endomixis) without the cooperation of two
animals involving syncaryon formation (amphimixis) as in conjugation. After
endomixis was worked out, it seemed unnecessary to continue longer the main ...
Osborn Zoological Laboratory, 1921
2
The Journal of Experimental Zoology
Between 3/5, the date of appearance of the last endomixis in II, the parent fine,
and 5/1 when the first endomixis occurred in line IV, there was a period of forty-
five generations; while from 5/1 until 6/9 when the next endomixis ensued in line
IV, ...
Ross Granville Harrison, William Keith Brooks, 1918
3
The Genetics of Paramecium Aurelia
Endomixis; hemixis. Although the literature on Paramecium abounds in
references to the term endomixis, that is, formation of new macronuclei without a
previous nuclear fusion (see Woodruff and Erdmann, 19 14), it seems clear that
the ...
Endomixis : It was reported by Woodruff and Erdmann (1914) in P. aurelia. It is
essentially a process of nuclear organization. There is no meiosis and no nuclear
fusion. It occurs in a single individual in the following way : (a) The macronucleus
...
Dr. M. C. Bhatnagar, Dr. Geeta Bansal
Conjugation involves fusion of two or more individuals of the same species.
Endomixis An intricate process of the nuclear reconstruction without the fusion of
the individuals occurs in some species which is termed endomixis and is
observed ...
6
Progress in Invertebrate Zoology
In the course of endomixis, a nuclear reorganization, somewhat resembling that
of conjugation, takes place. There is, however, no nuclear fusion. Some
researchers believe, however, that the so-called endomixis is actually a
confusion of ...
7
The journal of experimental zoology
The occurrence of fragmentation of the macronucleus as shown in stained
specimens was taken as evidence of endomixis, and this was determined as
taking place in this strain of Paramecium every thirty to thirty-five days. It was
found to be ...
8
Sex and Death in Protozoa: The History of Obsession
Woodruff, L.L. (1917a). Rhythms and endomixis in various races of Paramecium
aurelia. Biol. Bull., 33, 51-56. Woodruff, L.L. (1917b). The influence of general
environmental conditions on the periodicity of endomixis in Paramecium aurelia.
9
Invertebrates: Protozoa to Echinodermata
Endomixis. It occurs in Paramacium aurelia and shows following features :
Periodic disintegration and resorption of the macronucleus. Division of the
micronuclei to produce eight daughter nuclei, all but two of which usually
disintegrate.
Thus endomixis has now been demonstrated in each of the four races which we
have studied. Further, the idea of Hertwig that endomixis occurs only after long
cultivation of a race of Paramaecium was shown not to be true in Woodruff's main
...
Osborn Zoological Laboratory, 1916
