{"id":30251,"date":"2018-03-16T12:39:34","date_gmt":"2018-03-16T12:39:34","guid":{"rendered":"https:\/\/rtvnp.rs\/?p=30251"},"modified":"2018-03-16T12:39:34","modified_gmt":"2018-03-16T12:39:34","slug":"resena-najveca-dilema-sta-je-starije-kokoska-ili-jaje","status":"publish","type":"post","link":"https:\/\/arhiva.rtvnp.rs\/?p=30251","title":{"rendered":"Re\u0161ena najve\u0107a dilema: \u0160ta je starije, koko\u0161ka ili jaje?"},"content":{"rendered":"<p>\u0160ta je pre nastalo &#8211; koko\u0161ka ili jaje? Ovo pitanje jedno je od naj\u010de\u0161\u0107e postavljanih u istoriji, a ljudi \u010desto biraju odgovor &#8216;jaje&#8217;, uz argument da su na taj na\u010din jo\u0161 dinosaurusi dolazili na svet.<\/p>\n<p>Ipak, nau\u010dnici sa Univerziteta \u0160efild i Univerziteta Vorvik imaju druga\u010diji odgovor.<\/p>\n<p>Njihovo istra\u017eivanje pokazalo je da ljuska koko\u0161ijeg jajeta mo\u017ee da nastane samo iz proteina koji se proizvodi u koko\u0161ijim jajnicima, \u0161to zna\u010di da je koko\u0161ka morala da postoji pre jajeta.<\/p>\n<p>Taj protein zove se OC-17 i deluje kao katalizator koji ubrzava razvoj ljuske, a tvrda ljuska neophodna je za za\u0161titu \u017eumanceta u kojem se razvija pile, pi\u0161e Dejli mejl.<\/p>\n<p>Nau\u010dnici su koristili superkompjuter HECToR kako bi mogli da zumiraju unutra\u0161njost jajeta i posmatraju njegov razvoj.<\/p>\n<p>Otkrili su da je protein OC-17 klju\u010dan za potdsicanje kristalizacije u ranim stadijumima razvoja ljuske, tako \u0161to pretvara kalcijum karbonat u kristale kalcita koji \u010dine ljusku.<\/p>\n<p>Kristali kalcita mogu se na\u0107i u kostima i oklopima raznih \u017eivotinja, ali se kod koko\u0161aka stvaraju br\u017ee nego kod bilo koje druge vrste. Tako \u0161est grama ljuske nastaje sa zamo 24 sata.<\/p>\n<p>&nbsp;<\/p>\n<p>Izvor: B92<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u0160ta je pre nastalo &#8211; koko\u0161ka ili jaje? Ovo pitanje jedno je od naj\u010de\u0161\u0107e postavljanih u istoriji, a ljudi \u010desto biraju odgovor &#8216;jaje&#8217;, uz argument da su na taj na\u010din jo\u0161 dinosaurusi dolazili na svet. Ipak, nau\u010dnici sa Univerziteta \u0160efild i Univerziteta Vorvik imaju druga\u010diji odgovor. Njihovo istra\u017eivanje pokazalo je da ljuska koko\u0161ijeg jajeta mo\u017ee [&hellip;]<\/p>\n","protected":false},"author":15,"featured_media":30252,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[17,68],"tags":[],"class_list":["post-30251","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-zabava","category-zanimljivosti"],"_links":{"self":[{"href":"https:\/\/arhiva.rtvnp.rs\/index.php?rest_route=\/wp\/v2\/posts\/30251","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/arhiva.rtvnp.rs\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/arhiva.rtvnp.rs\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/arhiva.rtvnp.rs\/index.php?rest_route=\/wp\/v2\/users\/15"}],"replies":[{"embeddable":true,"href":"https:\/\/arhiva.rtvnp.rs\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=30251"}],"version-history":[{"count":0,"href":"https:\/\/arhiva.rtvnp.rs\/index.php?rest_route=\/wp\/v2\/posts\/30251\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/arhiva.rtvnp.rs\/index.php?rest_route=\/wp\/v2\/media\/30252"}],"wp:attachment":[{"href":"https:\/\/arhiva.rtvnp.rs\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=30251"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/arhiva.rtvnp.rs\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=30251"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/arhiva.rtvnp.rs\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=30251"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}