منابع مشابه
The Cytological Aspects of the Deter- Mination of Sex in the Dicecious Forms
IN examining various groups of plants, in the hope of finding one which would throw fresh light on the question of sex determination, the dioecious forms of Lychnis suggested themselves as being particularly suitable. The genus Lychnis, as a whole, is hermaphrodite, and even the dioecious species may readily exhibit this character. In the female flower rudiments of stamens are always present an...
متن کاملWhen Females Produce Sperm: Genetics of C. elegans Hermaphrodite Reproductive Choice
Reproductive behaviors have manifold consequences on evolutionary processes. Here, we explore mechanisms underlying female reproductive choice in the nematode Caenorhabditis elegans, a species in which females have evolved the ability to produce their own self-fertilizing sperm, thereby allowing these "hermaphrodites" the strategic choice to self-reproduce or outcross with males. We report that...
متن کاملGender trading in a hermaphrodite
(2005). Social experience and pheromonal perception can change male-male interactions in Drosophila melanogaster. (2002). Novel genes expressed in subsets of chemosensory sensilla on the front legs of male Drosophila melanogaster. experience and their interaction on the courtship behaviour of transgenic Drosophila males. (1988). Precise characterization of cuticular compounds in young Drosophil...
متن کاملChromosome mosaicism in a hermaphrodite.
The chromosome complement in 27 patients with convincing evidence of hermaphroditism has now been investigated. A normal female karyotype (44 autosomes + XX) was reported in I7 cases (Bregman, Bregman, Cushner, and Woods, I963; de Assis, Epps, and Bottura, I960; Dewhurst, Warrack, and Casey, I963; German, Bearn, and McGovern, I962; Gordon, O'Gorman, Dewhurst, and Blank, I960; Harnden and Armstr...
متن کاملHermaphrodite with Mosaic
SIR,-In a recent review de Grouchy 1 compiles the following karyotypes described in true hermaphroditism: 46 XX, 46 XY, 46 XX/46 XY, 45 XO/46 XY, 46 XX/47 XXY, 46 XX/47 XXX, 46 XX/46 XY/45 XO, 46 XX/47 XXY/ 49 XXYYY, and 45 XO/46 X isoY/47 XY isoY. We have studied the chromosomes of a true hermaphrodite with a new mosaicism, 46 XX/46 XY/47 XXY, which might throw some light on the possible multi...
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ژورنال
عنوان ژورنال: Science
سال: 1912
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.36.928.482