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The Chromosomes of Birds during Meiosis
(Karger, 2017-02)
The cytological analysis of meiotic chromosomes is an exceptional tool to approach complex processes such as synapsis and recombination during the division. Chromosome studies of meiosis have been especially valuable in ...
Description of the profasic chromosome in Meiosis I of Bostryx conspersusDescripción del cromosoma profásico en la meiosis I de Bostryx conspersus
(Universidad Nacional Mayor de San Marcos, Facultad de Ciencias Biológicas, 2011)
Meiosis
(Facultad de Medicina, 1995)
Conceptions of meiosis: Misunderstandings among university students and errors
(Inst Biology, 2018-05)
We have designed and tested an exercise to detect misconceptions among students about meiosis, a fundamental concept in genetics. A total of 30 students responded to a questionnaire, all of whom were in the fifth semester ...
Chromosome complement and meiosis in three species of the Neotropical bug genus Antiteuchus (Heteroptera, Pentatomidae, Discocephalinae)
(Sociedade Brasileira de Genética, 2006-12)
Orcein staining of spermatocytes was used to study the meiotic behavior of holocentric chromosomes in three member of the genus Antiteuchus (commonly known as stink bugs). We describe and illustrate the karyotype of ...
Ultrastructure and development during meiosis and the tetrad period of sporogenesis in the leptosporangiate fern Alsophila setosa (Cyatheaceae) compared with corresponding stages in Psilotum nudum (Psilotaceae)
(Taylor & Francis As, 2011-12)
The pre-meiotic, meiotic and tetrad stages of development in microsporangia of Alsophila setosa were studied with particular emphasis on the early establishment of patterning in the microspore wall and the subsequent ...
Synapsis with and without recombination in the male meiosis of the leaf-footed bug Holhymenia rubiginosa (Coreidae, Heteroptera)
(Springer, 2008-12)
In organisms with chiasmatic meiosis two different relationships have been described between crossing over and synapsis: in one group of organisms synapsis depends on the initiation of meiotic recombination while in the ...
Regulation of meiosis initiation in the mammalian testis: novel aspects
(Elsevier, 2020-10)
Meiosis first appears at puberty in the mammalian testis, is central to spermatogenesis, and relies on androgens and retinoic acid (RA). While the role androgens play in meiosis initiation is well characterized, the mechanism ...
Meiosis and Chromosome Painting of Sex Chromosome Systems in Ceboidea
(Wiley-liss, div John Wiley & Sons Inc., 2001-02)
The identity of the chromosomes involved in the multiple sex system of Alouatta caraya (Aca) and the possible distribution of this system among other Ceboidea were investigated by chromosome painting of mitotic cells from ...
Parthenogenesis in reptilesPartenogénesis en reptiles
(Universidad Autónoma del Estado de Hidalgo, 2014)