Bilim insanlar\u0131, Brezilya’da bulunan 115 milyon y\u0131ll\u0131k bir dinozor fosilinde, k\u0131rm\u0131z\u0131 kan h\u00fccreleri oldu\u011fu de\u011ferlendirilen yap\u0131larda kana ait molek\u00fcler izler tespit etti.<\/p>\n
Avustralya ve farkl\u0131 \u00fclkelerden ara\u015ft\u0131rmac\u0131lar, Brezilya’da bulunan 115 milyon y\u0131ll\u0131k Aratasaurus museunacionali t\u00fcr\u00fcne ait et\u00e7il bir dinozorun fosilini inceledi.<\/p>\n
Ara\u015ft\u0131rmac\u0131lar, karma\u015f\u0131k s\u0131v\u0131 kar\u0131\u015f\u0131mlar\u0131ndaki bile\u015fenleri ay\u0131rmaya, tan\u0131mlamaya ve miktarlar\u0131n\u0131 belirlemeye yarayan y\u00fcksek performansl\u0131 s\u0131v\u0131 kromatografisi ve k\u00fctle spektrometrisi y\u00f6ntemlerini kullanarak dinozorun uzuv kemiklerinde, kanda oksijen ta\u015f\u0131nmas\u0131n\u0131 sa\u011flayan hemoglobin proteininin yap\u0131s\u0131nda bulunan bir molek\u00fcl\u00fcn izlerini belirledi.<\/p>\n
Fosil kemi\u011finden elde edilen \u00f6rneklerde bu molek\u00fcl\u00fcn zaman i\u00e7inde kimyasal de\u011fi\u015fime u\u011fram\u0131\u015f t\u00fcrevlerini bulan ara\u015ft\u0131rmac\u0131lar, fosilin \u00e7evresindeki kaya\u00e7larda ise klorofil ve bakteriyoklorofil kaynakl\u0131 farkl\u0131 molek\u00fcler izlere rastlad\u0131.<\/p>\n
Ara\u015ft\u0131rmac\u0131lar, s\u00f6z konusu bulgunun kan bile\u015fenlerinin d\u0131\u015f kaynakl\u0131 kirlenmeden ziyade dinozora ait olabilece\u011fi fikrini destekledi\u011fini belirtti.<\/p>\n
Ayr\u0131ca, k\u0131rm\u0131z\u0131 kan h\u00fccreleri oldu\u011fu d\u00fc\u015f\u00fcn\u00fclen yap\u0131lar\u0131n i\u00e7erisinde demir, azot ve karbon elementleri tespit eden ara\u015ft\u0131rmac\u0131lar, s\u00f6z konusu yap\u0131lar\u0131n i\u00e7erisinde bulunan minerallerin biyolojik molek\u00fcllerin korunmas\u0131na katk\u0131da bulunmu\u015f olabilece\u011fini ifade etti.<\/p>\n
Ara\u015ft\u0131rmac\u0131lar, bulgular\u0131n milyonlarca y\u0131ll\u0131k fosillerde \u00f6zg\u00fcn biyolojik molek\u00fcllerin korunabilece\u011fine ili\u015fkin g\u00fc\u00e7l\u00fc kan\u0131tlar sundu\u011funu ve dinozorlar\u0131n fizyolojik \u00f6zelliklerinin molek\u00fcler d\u00fczeyde ara\u015ft\u0131r\u0131lmas\u0131na yeni imkanlar sa\u011flayabilece\u011fini kaydetti.<\/p>\n
Ara\u015ft\u0131rman\u0131n sonu\u00e7lar\u0131, ABD Ulusal Bilimler Akademisi Bildirileri (PNAS) dergisinde yay\u0131mland\u0131.<\/p><\/p>\n","protected":false},"excerpt":{"rendered":"
Bilim insanlar\u0131, Brezilya’da bulunan 115 milyon y\u0131ll\u0131k bir dinozor fosilinde, k\u0131rm\u0131z\u0131 kan h\u00fccreleri oldu\u011fu de\u011ferlendirilen yap\u0131larda kana ait molek\u00fcler izler tespit etti. Avustralya ve farkl\u0131 \u00fclkelerden ara\u015ft\u0131rmac\u0131lar, Brezilya’da bulunan 115 milyon y\u0131ll\u0131k Aratasaurus museunacionali t\u00fcr\u00fcne ait et\u00e7il bir dinozorun fosilini inceledi. Ara\u015ft\u0131rmac\u0131lar, karma\u015f\u0131k s\u0131v\u0131 kar\u0131\u015f\u0131mlar\u0131ndaki bile\u015fenleri ay\u0131rmaya, tan\u0131mlamaya ve miktarlar\u0131n\u0131 belirlemeye yarayan y\u00fcksek performansl\u0131 s\u0131v\u0131 …<\/p>\n","protected":false},"author":1,"featured_media":164712,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[4214,63,4686,405,51275,9438,51276,205,51277,1438,748],"class_list":["post-164711","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-dunya","tag-4214","tag-ait","tag-dinozor","tag-edildi","tag-fosilinde","tag-izler","tag-kana","tag-milyon","tag-molekuler","tag-tespit","tag-yillik"],"_links":{"self":[{"href":"https:\/\/www.kibrishost.com\/tak\/wp-json\/wp\/v2\/posts\/164711"}],"collection":[{"href":"https:\/\/www.kibrishost.com\/tak\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kibrishost.com\/tak\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kibrishost.com\/tak\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kibrishost.com\/tak\/wp-json\/wp\/v2\/comments?post=164711"}],"version-history":[{"count":0,"href":"https:\/\/www.kibrishost.com\/tak\/wp-json\/wp\/v2\/posts\/164711\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kibrishost.com\/tak\/wp-json\/wp\/v2\/media\/164712"}],"wp:attachment":[{"href":"https:\/\/www.kibrishost.com\/tak\/wp-json\/wp\/v2\/media?parent=164711"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kibrishost.com\/tak\/wp-json\/wp\/v2\/categories?post=164711"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kibrishost.com\/tak\/wp-json\/wp\/v2\/tags?post=164711"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}