{"id":10476,"date":"2009-06-26T15:29:31","date_gmt":"2009-06-26T12:29:31","guid":{"rendered":"http:\/\/www.korhanyilmaz.com\/?p=10476"},"modified":"2009-06-26T15:29:31","modified_gmt":"2009-06-26T12:29:31","slug":"insanin-en-yakin-akrabasi-hangisi","status":"publish","type":"post","link":"http:\/\/www.korhanyilmaz.com\/?p=10476","title":{"rendered":"\u0130nsan\u0131n en yak\u0131n akrabas\u0131 hangisi?"},"content":{"rendered":"

\"\"<\/p>\n

ABD’li bilimciler insan\u0131n ya\u015fayan en yak\u0131n genetik akrabas\u0131n\u0131n san\u0131ld\u0131\u011f\u0131 gibi \u015fampanzeler de\u011fil orangutanlar oldu\u011funu ileri s\u00fcrd\u00fc.<\/strong><\/p>\n

\u0130STANBUL<\/span> – 2005 y\u0131l\u0131nda \u015fempanze genomu s\u0131raland\u0131. Bilimadamlar\u0131, genomu y\u00fczde 96 oran\u0131nda insan genomu ile ayn\u0131 olan \u015fempanzerlerin, insanlar\u0131n ya\u015fayan en yak\u0131n akrabas\u0131 oldu\u011funu a\u00e7\u0131klad\u0131lar.
\nGenel kabul g\u00f6ren bu g\u00f6r\u00fc\u015fe bilim d\u00fcnyas\u0131ndan itiraz geldi. New York Bilim M\u00fczesi\u2019nden John Grehan ve Pittsburg \u00dcniversitesi\u2019ndn Jeffrey Schwartz ortak \u00e7al\u0131\u015fmalar\u0131nda, elde edilen DNA bulgular\u0131n\u0131n insan ve \u015fempanze genomar\u0131n\u0131n k\u00fc\u00e7\u00fck bir b\u00f6l\u00fcm\u00fcn\u00fc ayd\u0131nlatt\u0131\u011f\u0131n\u0131 ileri s\u00fcrd\u00fcler.
\n\u0130ki bilimadam\u0131, genetik benzerlikleri payla\u015fan canl\u0131 t\u00fcrlerinin b\u00fcy\u00fck bir grup olu\u015fturdu\u011funa dikkat \u00e7ekerek, farkl\u0131 t\u00fcrler aras\u0131ndaki akrabal\u0131klar\u0131n \u2018t\u00fcre \u00f6zg\u00fc ortak fiziksel \u00f6zellikler\u2019 temelinde yap\u0131lmas\u0131 gerekti\u011fini savunuyor.
\n\u2018Journal of Biogeography\u2019 adl\u0131 dergide yay\u0131nlanan makalede, insan ile orangutan\u0131n 28 ‘t\u00fcre \u00f6zg\u00fc ortak fiziksel \u00f6zelli\u011fi’ payla\u015fmalar\u0131na kar\u015f\u0131n, insan\u0131n \u015fempanzeyle 2, gorille de sadece 7 ortak fiziksel \u00f6zelli\u011fi oldu\u011funun alt\u0131 \u00e7iziliyor.
\n\u0130ki bilimadam\u0131na g\u00f6re, beyinlerinin iki yar\u0131s\u0131n\u0131n asimetrik olu\u015fu, \u00f6n kollar\u0131ndaki k\u0131k\u0131rdak oran\u0131, az\u0131 di\u015flerinin mine ile kapl\u0131 k\u0131s\u0131mlar\u0131n\u0131n d\u00fcz olu\u015fu ve omuzlardaki kemiklerin yap\u0131s\u0131n\u0131n benzerli\u011fi insan\u0131n en yak\u0131n ya\u015fayan akrabas\u0131n\u0131n oragutan oldu\u011funa ili\u015fkin g\u00fc\u00e7l\u00fc deliller olu\u015fturuyor.<\/p>\n

ORTAK ATA 13 M\u0130LYON YIL \u00d6NCE AYRILDI <\/strong>
\n\u0130ki t\u00fcr aras\u0131ndaki ortakl\u0131klar\u0131n say\u0131s\u0131n\u0131n \u00e7ok olmas\u0131na ra\u011fmen, \u00f6nemli bir fark var; insanlar\u0131n, \u015fempanzeler, bonobolar ve gorillerle ortak atadan Afrika\u2019da evrimle\u015fti\u011fi bilim d\u00fcnyas\u0131nda genel kabul g\u00f6r\u00fcyor. Orangutanlar ise G\u00fcneydo\u011fu Asya\u2019n\u0131n yerli t\u00fcrlerinden biri.
\nGrehan ve Schwartz buna yan\u0131t olarak insan ve orangutan\u0131n ortak atas\u0131n\u0131n 13 milyon y\u0131l \u00f6nce Afrika, Avrupa ve Asya\u2019da ya\u015fad\u0131\u011f\u0131n\u0131 ve daha sonra farkl\u0131la\u015ft\u0131\u011f\u0131n\u0131 ileri s\u00fcr\u00fcyor. Bu teoriye g\u00f6re, Afrika ve Avrasya\u2019n\u0131n baz\u0131 b\u00f6lgelerinde ya\u015fanan iklim de\u011fi\u015fikli\u011fi nedeniyle, bu b\u00f6lgelerde orangutanlar\u0131n soyu t\u00fckendi.<\/p>\n

\u2018T\u00dcRE \u00d6ZG\u00dc \u00d6ZELL\u0130KLER TEMEL OLMALI\u2019 <\/strong>
\n\u201cT\u00fcrler aras\u0131ndaki ili\u015fkiler hakk\u0131nda titiz bir analiz yap\u0131yorsan\u0131z, sadece benzerliklere ait potansiyel delillerle yetinemezsiniz\u201d diyen Jeffrey Schwartz, iddialar\u0131 hakk\u0131nda \u015funlar\u0131 s\u00f6yledi: \u201ct\u00fcrler aras\u0131ndaki ili\u015fki, canl\u0131lar aras\u0131nda var olan genel \u00f6zelliklerin yan\u0131 s\u0131ra \u2018t\u00fcre \u00f6zg\u00fc \u00f6zellikler\u2019 temelinde de ele al\u0131nmal\u0131d\u0131r.\u201d<\/p>\n

B\u0130L\u0130M D\u00dcNYASI TEMK\u0130NL\u0130 <\/strong>
\nGrehan ve Schwartz\u2019\u0131n iddialar\u0131na di\u011fer bilimadamlar\u0131 ihtiyatl\u0131 yakla\u015f\u0131yor. Ayn\u0131 zamanda \u2018Borneo Orangutanlar\u0131n\u0131 Koruma \u00c7al\u0131\u015fmalar\u0131\u2019nda da yer alan Z\u00fcrih \u00dcniversitesi\u2019nden Carel van Schaik konuyla ilgili \u015funlar\u0131 s\u00f6yledi: \u201cGenetik bulgulardan farkl\u0131 sonu\u00e7lara ula\u015fan bu \u00e7al\u0131\u015fma, molek\u00fcler \u00e7al\u0131\u015fmalar\u0131n da neden yanl\u0131\u015f oldu\u011funu a\u00e7\u0131klamal\u0131d\u0131r. Elbette insanlar ile orangutanlar aras\u0131nda benzerlikler vard\u0131r ama \u015fempanzeler ve gorillerle de…\u201d
\nKent \u00dcniversitesi\u2019nden Nick Newton-Fisher da ara\u015ft\u0131rmalar\u0131n genetik bulgulardan uzakla\u015ft\u0131r\u0131lmas\u0131n\u0131n kolay kabul edilebilir olamd\u0131\u011f\u0131n\u0131 s\u00f6yledi.\n<\/p>\n

Kaynak : Radikal<\/span><\/p>\n","protected":false},"excerpt":{"rendered":"

\n

ABD’li bilimciler insan\u0131n ya\u015fayan en yak\u0131n genetik akrabas\u0131n\u0131n san\u0131ld\u0131\u011f\u0131 gibi \u015fampanzeler de\u011fil orangutanlar oldu\u011funu ileri s\u00fcrd\u00fc.<\/p>\n

\u0130STANBUL – 2005 y\u0131l\u0131nda \u015fempanze genomu s\u0131raland\u0131. Bilimadamlar\u0131, genomu y\u00fczde 96 oran\u0131nda insan genomu ile ayn\u0131 olan \u015fempanzerlerin, insanlar\u0131n ya\u015fayan en yak\u0131n akrabas\u0131 oldu\u011funu a\u00e7\u0131klad\u0131lar. Genel kabul g\u00f6ren bu g\u00f6r\u00fc\u015fe bilim d\u00fcnyas\u0131ndan <\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[7],"tags":[],"class_list":["post-10476","post","type-post","status-publish","format-standard","hentry","category-ekonomi","odd"],"_links":{"self":[{"href":"http:\/\/www.korhanyilmaz.com\/index.php?rest_route=\/wp\/v2\/posts\/10476","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.korhanyilmaz.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.korhanyilmaz.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.korhanyilmaz.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.korhanyilmaz.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=10476"}],"version-history":[{"count":0,"href":"http:\/\/www.korhanyilmaz.com\/index.php?rest_route=\/wp\/v2\/posts\/10476\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.korhanyilmaz.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=10476"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.korhanyilmaz.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=10476"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.korhanyilmaz.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=10476"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}