Results 221 to 230 of about 18,943 (253)
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The meiotic behavior of triploidy in a human 69,XXX fetus

Cytogenetics and Cell Genetics, 2008
Meiotic studies were made on the fetal ovaries of a triploid fetus, 69, XXX. The association modalities of the three chromosomes in human triploidy are the same as those described in several plant species; i.e., trivalents, bivalents and univalents can be found in the same nucleus.
J M, Luciani   +4 more
openaire   +2 more sources

Meiotic Behavior and Effects of B Chromosomes in Tall Fescue

Journal of Heredity, 1990
Chromosome pairing and chiasma frequency were studied in seven genotypes of allohexaploid tall fescue (Festuca arundinacea Schreb., 2n = 6x = 42) from the Swiss ...
P P, Jauhar, C F, Crane
openaire   +2 more sources

The Molecular Control of Meiotic Chromosomal Behavior: Events in Early Meiotic Prophase in Drosophila Oocytes

Annual Review of Physiology, 2012
We review the critical events in early meiotic prophase in Drosophila melanogaster oocytes. We focus on four aspects of this process: the formation of the synaptonemal complex (SC) and its role in maintaining homologous chromosome pairings, the critical roles of the meiosis-specific process of centromere clustering in the formation of a full-length SC,
Cathleen M, Lake, R Scott, Hawley
openaire   +2 more sources

MEIOTIC CHROMOSOME BEHAVIOR IN MONOPLOID SUGARBEET

Canadian Journal of Genetics and Cytology, 1980
The meiotic behavior of a monoploid plant of sugarbeet (Beta vulgaris L.) was studied. At meta-anaphase I univalents, bivalents and trivalents, and secondary associations of up to three chromosomes were observed, with an average of 8.65 I + 0.16 II + 0.01 III per cell or 0.18 chiasmata per cell.
openaire   +1 more source

Meiotic Behavior in the Mushroom Collybia Maculata Var. Scorzonerea

Mycologia, 1968
(1968). Meiotic Behavior in the Mushroom Collybia Maculata Var. Scorzonerea. Mycologia: Vol. 60, No. 2, pp. 451-456.
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The unusual meiotic behavior of Elymus Wiegandii

Experimental Cell Research, 1950
At the onset of meiotic prophase, the meiocytes present a bizarre appearance (Figs. l-4). In ordinary meiosis the loosely reticulate fabric of the resting nucleus appears to ravel out into chromosome threads. Here, however, all the deeply staining part of the reticulum appears to gather, to be stripped from the threads, to coalesce into a number of ...
openaire   +1 more source

Studies on the behavior of meiotic protoplasts

The Botanical Magazine Tokyo, 1975
Miyako H. Takegami, Michio Ito
openaire   +1 more source

Mechanisms of meiotic drive in symmetric and asymmetric meiosis

Cellular and Molecular Life Sciences, 2021
Jacob L Mueller, Mueller Jacob L
exaly  

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