Sexo redefinido

Sexo redefinido
La idea de dos sexos es simplista. Algunos biólogos ahora piensan que hay un espectro más amplio que eso.

Nature Journal recopila investigaciones que han cambiado la forma en que los biólogos comprenden el sexo. Las nuevas tecnologías en la secuenciación del ADN y la biología celular están revelando que el sexo cromosómico es un proceso, no una asignación.

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When genetics is taken into consideration, the boundary between the sexes becomes even blurrier. Scientists have identified many of the genes involved in the main forms of DSD, and have uncovered variations in these genes that have subtle effects on a person’s anatomical or physiological sex. What’s more, new technologies in DNA sequencing and cell biology are revealing that almost everyone is, to varying degrees, a patchwork of genetically distinct cells, some with a sex that might not match that of the rest of their body. Some studies even suggest that the sex of each cell drives its behaviour, through a complicated network of molecular interactions. “I think there’s much greater diversity within male or female, and there is certainly an area of overlap where some people can’t easily define themselves within the binary structure,” says John Achermann, who studies sex development and endocrinology at University College London’s Institute of Child Health.

These discoveries do not sit well in a world in which sex is still defined in binary terms. Few legal systems allow for any ambiguity in biological sex, and a person’s legal rights and social status can be heavily influenced by whether their birth certificate says male or female.

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https://www.nature.com/news/sex-redefined-1.16943

Sex biology redefined: Genes don’t indicate binary sexes