Avustralya\u2019daki Curtin \u00dcniversitesi ara\u015ft\u0131rmac\u0131lar\u0131, Brezilya\u2019da Erken Kretase d\u00f6nemine ait 3 metre boyundaki Aratasaurus museunacionali t\u00fcr\u00fc dinozorun, 115 milyon y\u0131ll\u0131k bacak kemi\u011finde fosille\u015fmi\u015f kan h\u00fccreleri tespit etti. Kemi\u011fin i\u00e7indeki damar kanallar\u0131nda bulunan bu h\u00fccrelerin, oksijen ta\u015f\u0131yan hem molek\u00fcl\u00fc i\u00e7erdi\u011fi belirlendi. Bilim d\u00fcnyas\u0131nda bir ilk say\u0131lan bu ke\u015fif, fosillerin nesli t\u00fckenmi\u015f canl\u0131lar\u0131n kimyasal haf\u0131zas\u0131n\u0131 ve biyolojisini milyonlarca y\u0131l boyunca koruyabildi\u011fini g\u00f6sterdi.<\/p>\n
Do\u011fal zaman kaps\u00fcl\u00fc<\/strong><\/p>\n Hassas biyolojik yap\u0131lar\u0131n 115 milyon y\u0131l boyunca bozulmadan g\u00fcn\u00fcm\u00fcze ula\u015fabilmesi bilim insanlar\u0131n\u0131 \u015fa\u015f\u0131rtt\u0131. Ara\u015ft\u0131rmac\u0131lar, dinozorun \u00f6l\u00fcm\u00fcn\u00fcn ard\u0131ndan d\u00fc\u015f\u00fck oksijenli bir ortamda h\u0131zla g\u00f6m\u00fcld\u00fc\u011f\u00fcn\u00fc ve kemikte \u201chausmannit\u201d ad\u0131 verilen \u00f6zel bir manganez mineralinin birikti\u011fini belirtti. H\u00fccrelerin etraf\u0131n\u0131 sararak koruyucu bir kalkan olu\u015fturan bu mineral, do\u011fal bir zaman kaps\u00fcl\u00fc g\u00f6revi g\u00f6rerek kan h\u00fccrelerinin ve amino asit izlerinin fosille\u015fme s\u00fcrecinde silinmesini engelledi.<\/p>\n \u2018DNA yoksa klonlama olmaz\u2019<\/strong><\/p>\n Ke\u015fif, sinema d\u00fcnyas\u0131n\u0131n efsanevi \u201cJurassic Park\u201d filmini g\u00fcndeme ta\u015f\u0131sa da bilim insanlar\u0131 ger\u00e7ek\u00e7i olunmas\u0131 uyar\u0131s\u0131nda bulundu. Ara\u015ft\u0131rma ekibi lideri Prof. Kliti Grice, fosilde dinozor DNA\u2019s\u0131 veya geni bulunmad\u0131\u011f\u0131n\u0131 ifade etti. Klonlama i\u00e7in eksiksiz genetik veriler gerekti\u011fini belirten uzmanlar, DNA\u2019n\u0131n zamanla yok oldu\u011funu, bu nedenle g\u00fcn\u00fcm\u00fcz teknolojisiyle canl\u0131 bir dinozor olu\u015fturman\u0131n m\u00fcmk\u00fcn olmad\u0131\u011f\u0131n\u0131 kaydetti. Bulunan kan h\u00fccreleri dinozorlar\u0131 geri getirmeyecek; ancak yok olan bu canl\u0131lara dair molek\u00fcler bir kimyasal haf\u0131za sunacak.<\/p>\n \u0130konik filmde klonlanm\u0131\u015ft\u0131<\/strong><\/p>\n G\u00fcn\u00fcm\u00fczdeki ku\u015flar\u0131n atalar\u0131 olan dinozorlar, 66 milyon y\u0131l \u00f6nce dev bir g\u00f6kta\u015f\u0131n\u0131n D\u00fcnya\u2019ya \u00e7arpmas\u0131 ve ard\u0131ndan gelen iklim de\u011fi\u015fikli\u011fiyle yok olmu\u015ftu. Dinozorlarla ilgili en \u00fcnl\u00fc film, Steven Spielberg\u2019in y\u00f6netti\u011fi 1993 ABD yap\u0131m\u0131 \u201cJurassic Park\u201dt\u0131r. Gi\u015fe rekorlar\u0131 k\u0131ran filmde, gizli bir tema park\u0131nda klonlanan dinozorlar\u0131n g\u00fcvenlik sistemini a\u015f\u0131p serbest kalmas\u0131 ve tesistekilerin hayatta kalmak i\u00e7in verdi\u011fi amans\u0131z m\u00fccadele anlat\u0131lmaktad\u0131r.<\/p>\n","protected":false},"excerpt":{"rendered":" Avustralya\u2019daki Curtin \u00dcniversitesi ara\u015ft\u0131rmac\u0131lar\u0131, Brezilya\u2019da Erken Kretase d\u00f6nemine ait 3 metre boyundaki Aratasaurus museunacionali t\u00fcr\u00fc dinozorun, 115 milyon y\u0131ll\u0131k bacak kemi\u011finde fosille\u015fmi\u015f kan h\u00fccreleri tespit etti. Kemi\u011fin i\u00e7indeki damar kanallar\u0131nda bulunan bu h\u00fccrelerin, oksijen ta\u015f\u0131yan hem molek\u00fcl\u00fc i\u00e7erdi\u011fi belirlendi. Bilim d\u00fcnyas\u0131nda bir ilk say\u0131lan bu ke\u015fif, fosillerin nesli t\u00fckenmi\u015f canl\u0131lar\u0131n kimyasal haf\u0131zas\u0131n\u0131 ve biyolojisini milyonlarca … Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3],"tags":[],"class_list":["post-6531","post","type-post","status-publish","format-standard","hentry","category-teknoloji"],"_links":{"self":[{"href":"https:\/\/smmpanel.cfd\/blog\/wp-json\/wp\/v2\/posts\/6531","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/smmpanel.cfd\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/smmpanel.cfd\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/smmpanel.cfd\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/smmpanel.cfd\/blog\/wp-json\/wp\/v2\/comments?post=6531"}],"version-history":[{"count":0,"href":"https:\/\/smmpanel.cfd\/blog\/wp-json\/wp\/v2\/posts\/6531\/revisions"}],"wp:attachment":[{"href":"https:\/\/smmpanel.cfd\/blog\/wp-json\/wp\/v2\/media?parent=6531"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/smmpanel.cfd\/blog\/wp-json\/wp\/v2\/categories?post=6531"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/smmpanel.cfd\/blog\/wp-json\/wp\/v2\/tags?post=6531"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}