{"id":231573,"date":"2024-11-09T18:24:03","date_gmt":"2024-11-09T18:24:03","guid":{"rendered":"https:\/\/bm.dev.synology.me\/?p=231573"},"modified":"2024-11-09T18:24:03","modified_gmt":"2024-11-09T18:24:03","slug":"s-a-aflat-cine-a-fost-mai-intai-dintre-ou-si-gaina","status":"publish","type":"post","link":"https:\/\/bm.dev.synology.me\/?p=231573","title":{"rendered":"S-a aflat cine a fost mai \u00eent\u00e2i dintre ou \u015fi g\u0103in\u0103"},"content":{"rendered":"<p>\nO \u00eentrebare care a dat omenirii b\u0103t\u0103i de cap de secole \u015fi-a g\u0103sit \u00een sf\u00e2r\u015fit r\u0103spunsul: oul a ap\u0103rut \u00eenaintea g\u0103inii, iar concluzia vine dup\u0103 ce cercet\u0103torii de la Universitatea din Geneva au studiat un organism microscopic descoperit \u00een Hawaii.<br \/>\nTotul a pornit de la o celul\u0103 numit\u0103 Chromosphaera perkinsii, g\u0103sit\u0103 \u00een 2017 \u00een sedimentele marine din Hawaii. Acest organism minuscul, vechi de peste un miliard de ani, ascunde \u00een ADN-ul s\u0103u secretul evolu\u0163iei vie\u0163ii pe P\u0103m\u00e2nt.<\/p>\n<p>\nCercet\u0103torii spun c\u0103 aceast\u0103 celul\u0103 are capacitatea de a se transforma \u00eentr-un grup de celule diferite. Procesul seam\u0103n\u0103 foarte mult cu primele etape din dezvoltarea unui embrion. Celula con\u0163ine deja \u201einstruc\u0163iunile&#8221; necesare pentru a forma organisme mai complexe. Aceste instruc\u0163iuni genetice existau cu mult \u00eenainte s\u0103 apar\u0103 primele animale pe P\u0103m\u00e2nt.<\/p>\n<p>\n\u201eAm g\u0103sit dovada c\u0103 programele genetice care controleaz\u0103 dezvoltarea organismelor complexe erau deja prezente acum peste un miliard de ani&#8221;, explic\u0103 biologul Omaya Dudin, coordonatorul studiului.<br \/>\nPractic, capacitatea de a forma un \u201eembrion&#8221; &#8211; adic\u0103 un ou &#8211; exista \u00een natur\u0103 cu mult timp \u00eenainte s\u0103 apar\u0103 animalele care s\u0103-l foloseasc\u0103, precum g\u0103inile.<br \/>\nDescoperirea este publicat\u0103 \u00een revista \u015ftiin\u0163ific\u0103 Nature.<br \/>\n&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>O \u00eentrebare care a dat omenirii b\u0103t\u0103i de cap de secole \u015fi-a g\u0103sit \u00een sf\u00e2r\u015fit r\u0103spunsul: oul a ap\u0103rut \u00eenaintea g\u0103inii, iar concluzia vine dup\u0103 ce cercet\u0103torii de la Universitatea din Geneva au studiat un organism microscopic descoperit \u00een Hawaii. Totul a pornit de la o celul\u0103 numit\u0103 Chromosphaera perkinsii, g\u0103sit\u0103 \u00een 2017 \u00een sedimentele [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[510],"tags":[422,10754,32506],"class_list":["post-231573","post","type-post","status-publish","format-standard","hentry","category-actualitate","tag-animale","tag-capacitate","tag-gasire"],"_links":{"self":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/posts\/231573","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=231573"}],"version-history":[{"count":0,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/posts\/231573\/revisions"}],"wp:attachment":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=231573"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=231573"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=231573"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}