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{"id":38052,"date":"2024-11-09T16:21:39","date_gmt":"2024-11-09T19:21:39","guid":{"rendered":"https:\/\/crentenews.com.br\/?p=38052"},"modified":"2024-11-09T16:21:39","modified_gmt":"2024-11-09T19:21:39","slug":"o-que-surgiu-primeiro-o-ovo-ou-a-penosa-finalmente-a-ciencia-descobriu-a-resposta-para-o-dilema","status":"publish","type":"post","link":"https:\/\/crentenews.com.br\/09\/o-que-surgiu-primeiro-o-ovo-ou-a-penosa-finalmente-a-ciencia-descobriu-a-resposta-para-o-dilema\/news\/","title":{"rendered":"O que surgiu primeiro: o ovo ou a penosa? Finalmente, a ci\u00eancia descobriu a resposta para o dilema"},"content":{"rendered":"

<\/p>\n

\n
\n

Investigadores da Universidade de Genebra (Unige), na Su\u00ed\u00e7a, descobriram a resposta de uma das perguntas mais emblem\u00e1ticas da humanidade: quem veio primeiro, o ovo ou a penosa? Segundo os pesquisadores, a resposta \u00e9 o ovo.<\/p>\n<\/div>\n

\n
\n

Eles descobriram um organiza\u00e7\u00e3o unicelular capaz de formar estruturas muito semelhantes aos embri\u00f5es, chamado de Chromosfera perkinsii, que foi encontrado em sedimentos marinhos no Havai em 2017, por\u00e9m est\u00e1 presente na Terreno h\u00e1 bilh\u00f5es de anos, muito antes de surgirem os primeiros animais.<\/p>\n<\/div>\n

\n

Os especialistas observaram que quando a c\u00e9lula que forma a C. perkinsii atinge o seu tamanho supremo, ela divide-se, mas mant\u00e9m sempre a sua dimens\u00e3o original, formando col\u00f3nias multicelulares que se assemelham ao desenvolvimento embrion\u00e1rio dos animais.<\/p>\n

Publicidade<\/p>\n


\n
\n<\/center>\n<\/div>\n
\n

Estas col\u00f3nias persistem durante muro de um ter\u00e7o do ciclo de vida daquele organiza\u00e7\u00e3o e compreendem pelo menos dois tipos diferentes de c\u00e9lulas, um maravilha que os investigadores definem porqu\u00ea surpreendente para aquela forma de vida.<\/p>\n<\/div>\n

\n

“\u00c9 uma esp\u00e9cie unicelular, mas o seu comportamento mostra que nela j\u00e1 est\u00e3o presentes processos de coordena\u00e7\u00e3o e diferencia\u00e7\u00e3o multicelular, muito antes de os animais aparecerem na Terreno”, destacou a professora de bioqu\u00edmica Omaya Dudin, que liderou o estudo.<\/p>\n<\/div>\n

\n

Os cientistas da equipe da Unige esclarecem, no entanto, que outra explica\u00e7\u00e3o veros\u00edmil \u00e9 que o organiza\u00e7\u00e3o unicelular pode ter evolu\u00eddo de forma independente ao longo de milh\u00f5es de anos at\u00e9 ser capaz de desenvolver embri\u00f5es.<\/p>\n<\/div>\n

\n

Os pesquisadores est\u00e3o otimistas com os resultados da investiga\u00e7\u00e3o que podem servir de suporte a outras investiga\u00e7\u00f5es, porqu\u00ea a de f\u00f3sseis com 600 milh\u00f5es de anos com estruturas tamb\u00e9m semelhantes a embri\u00f5es, e que j\u00e1 desafiaram as concep\u00e7\u00f5es tradicionais de vida multicelular.<\/p>\n<\/div>\n<\/div>\n

\n

Manancial\/Cr\u00e9ditos:<\/strong> O Orbe<\/p>\n

Cr\u00e9ditos (Imagem de toga):<\/strong> Estudo su\u00ed\u00e7o diz ter desvendado mist\u00e9rio de quem veio primeiro: o ovo ou a penosa \u2014 Foto: Freepik<\/p>\n<\/p><\/div>\n<\/p><\/div>\n

Gospel Maisr<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Investigadores da Universidade de Genebra (Unige), na Su\u00ed\u00e7a, descobriram a resposta de uma das perguntas mais emblem\u00e1ticas da humanidade: quem veio primeiro, o ovo ou a penosa? Segundo os pesquisadores, a resposta \u00e9 o ovo. Eles descobriram um organiza\u00e7\u00e3o unicelular capaz de formar estruturas muito semelhantes aos embri\u00f5es, chamado de Chromosfera perkinsii, que foi encontrado […]<\/p>\n","protected":false},"author":1,"featured_media":38053,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"rank_math_lock_modified_date":false,"jnews-multi-image_gallery":[],"jnews_single_post":[],"jnews_primary_category":[],"jnews_social_meta":[],"jnews_override_counter":[],"footnotes":""},"categories":[15953],"tags":[4203,15114,13737,2931,16246,13948,109,948,2642,12126],"class_list":["post-38052","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-news","tag-ciencia","tag-descobriu","tag-dilema","tag-finalmente","tag-galinha","tag-ovo","tag-para","tag-primeiro","tag-resposta","tag-surgiu"],"_links":{"self":[{"href":"https:\/\/crentenews.com.br\/wp-json\/wp\/v2\/posts\/38052","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/crentenews.com.br\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/crentenews.com.br\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/crentenews.com.br\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/crentenews.com.br\/wp-json\/wp\/v2\/comments?post=38052"}],"version-history":[{"count":1,"href":"https:\/\/crentenews.com.br\/wp-json\/wp\/v2\/posts\/38052\/revisions"}],"predecessor-version":[{"id":38054,"href":"https:\/\/crentenews.com.br\/wp-json\/wp\/v2\/posts\/38052\/revisions\/38054"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/crentenews.com.br\/wp-json\/wp\/v2\/media\/38053"}],"wp:attachment":[{"href":"https:\/\/crentenews.com.br\/wp-json\/wp\/v2\/media?parent=38052"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/crentenews.com.br\/wp-json\/wp\/v2\/categories?post=38052"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/crentenews.com.br\/wp-json\/wp\/v2\/tags?post=38052"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}