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Skip to main content Skip to table of contents. Advertisement Hide. This service is more advanced with JavaScript available. Crossing Sex and Gender in Latin America.
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Crossing Sex and Gender in Latin America

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Sex-Related Differences in Crossing over in Caenorhabditis Elegans

In the nematode Caenorhabditis elegans, hermaphrodite recombination has been characterized and is the basis of the genetic map used in this organism. In this study we have examined male recombination on linkage group I and have found it to be approximately one-third less than that observed in the hermaphrodite. This decrease was interval-dependent and nonuniform. We observed less recombination in the male in 5 out of 6 intervals examined, and no observable difference in one interval on the right end of LG I. Hermaphrodite recombination frequencies are the result of recombination in two germlines; oocyte and hermaphrodite spermatocytes. We have measured recombination in the oocyte and have found it to be approximately twofold lower than that calculated for hermaphrodite spermatocytes and not significantly different from the male spermatocyte frequency. Thus, recombination frequencies appear to be a function of gonad physiology rather than the sex of the germline.
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Sex-Related Differences in Crossing over in Caenorhabditis Elegans

It seems that you're in Germany. We have a dedicated site for Germany. Signifying "others" or signs of life? This book critically examines the ways in which crossing sex and gender is imagined in key cultural texts from contemporary Latin America.
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A cross-sex friendship is a platonic relationship between an unrelated man and woman. There are multiple types of cross-sex friendships , all defined by whether or not each party has a romantic attraction to each other, or perceives that the other is interested. A few theories have been developed to explain the existence of such friendships. Research has been done on why men and women initiate these relationships, how they are perceived by others, implications for children with cross-sex friendships, among others.
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