{"id":27810,"date":"2018-07-22T14:54:56","date_gmt":"2018-07-22T11:54:56","guid":{"rendered":"https:\/\/bilimvegelecek.com.tr\/?p=27810"},"modified":"2023-08-18T09:09:12","modified_gmt":"2023-08-18T06:09:12","slug":"korelmis-organlar-evrim-surecinin-mirasidir","status":"publish","type":"post","link":"https:\/\/bilimvegelecek.com.tr\/index.php\/2018\/07\/22\/korelmis-organlar-evrim-surecinin-mirasidir","title":{"rendered":"K\u00f6relmi\u015f organlar evrim s\u00fcrecinin miras\u0131d\u0131r"},"content":{"rendered":"

Yarat\u0131l\u0131\u015f\u00e7\u0131lar\u0131\u00a0 iddias\u0131: <\/strong>K\u00f6relmi\u015f organlar evrime kan\u0131t de\u011fildir<\/p>\n

Bilimin yan\u0131t\u0131: <\/strong>K\u00f6relmi\u015f organlar evrim s\u00fcrecinin miras\u0131d\u0131r<\/p>\n

\u00a0<\/strong><\/p>\n

\u201cK\u00f6relmi\u015f organlar, evrime kan\u0131t de\u011fildir. K\u00f6relmi\u015f organlar\u0131n atalardan kald\u0131\u011f\u0131 bir yan\u0131lg\u0131d\u0131r.\u201d<\/p>\n

(Harun Yahya, Yarat\u0131l\u0131\u015f Atlas\u0131, s.697)<\/em><\/p>\n

 <\/p>\n

Organizmay\u0131 olu\u015fturan her t\u00fcrl\u00fc bile\u015fen, kendini s\u00fcrd\u00fcrebilmek i\u00e7in enerjiye ihtiya\u00e7 duyar. Bu nedenle yararl\u0131 bir i\u015flev sa\u011flamayan bedensel par\u00e7alar\u0131n, hatta metabolik s\u00fcre\u00e7lerin elenmesi organizman\u0131n yarar\u0131na olur. \u00d6rne\u011fin s\u00fcr\u00fcngenlerde renkli g\u00f6rme \u00f6zelli\u011finin, muhtemelen gece ya\u015fam\u0131na uyum sa\u011flamaya ba\u011fl\u0131 olarak memeli evriminin erken a\u015famas\u0131nda ortadan kalkt\u0131\u011f\u0131 d\u00fc\u015f\u00fcn\u00fclmektedir; bu \u00f6zellik primatlar\u0131n evrim s\u00fcrecinde tekrar ortaya \u00e7\u0131km\u0131\u015ft\u0131r. Fakat memelilerin \u00e7o\u011fu, renk tayf\u0131n\u0131n t\u00fcm\u00fcn\u00fc h\u00e2l\u00e2 g\u00f6remez, \u00e7\u00fcnk\u00fc bu canl\u0131larda s\u00f6z konusu \u00f6zellik tekrar se\u00e7ilime u\u011framam\u0131\u015ft\u0131r. Bu ba\u011flamda v\u00fccutta i\u015flev g\u00f6stermeyen bir \u00f6zellik bulmak s\u0131k kar\u015f\u0131la\u015f\u0131lan bir durum olmay\u0131p, k\u00f6relmi\u015f organlar bu a\u00e7\u0131dan de\u011ferlendirilebilir. Bu organlar\u0131n, organizman\u0131n di\u011fer karma\u015f\u0131k yap\u0131lar\u0131yla kar\u015f\u0131la\u015ft\u0131r\u0131ld\u0131\u011f\u0131nda, i\u015flevlerinin giderek azald\u0131\u011f\u0131 ve yok olma s\u00fcrecinde olduklar\u0131 d\u00fc\u015f\u00fcn\u00fclebilir. K\u00f6relmi\u015f organlar t\u00fcm\u00fcyle yarars\u0131z olmayabilir; ancak ba\u015fka yap\u0131lar\u0131 da kullanarak hayati \u00f6neme sahip olmayan kimi i\u015flevler g\u00f6r\u00fcyor olabilirler.<\/p>\n

Konuyla ilgili hem anatomik hem molek\u00fcler d\u00fczeyde say\u0131s\u0131z \u00f6rnek bulundu\u011fundan, \u00e7arp\u0131c\u0131 birka\u00e7 tanesine de\u011finelim. Bunlardan ilki memeli fetuslar\u0131nda geli\u015fimin d\u00f6rd\u00fcnc\u00fc ve be\u015finci haftas\u0131nda ortaya \u00e7\u0131kan ve do\u011fumdan \u00f6nce kaybolan kuyruk yap\u0131s\u0131d\u0131r. An\u00fcs ve bacak tomurcuklar\u0131n\u0131n arkas\u0131nda ortaya \u00e7\u0131kan 10-12 kuyrukomuru, embriyonun bu d\u00f6nemdeki boyutunun y\u00fczde 10\u2019undan fazlas\u0131n\u0131 meydana getirir. Sekonder n\u00f6ral t\u00fcp, notokord, mezenkim dokusu gibi bir\u00e7ok karma\u015f\u0131k dokudan meydana gelen bu olu\u015fum, 6-12. haftalar aras\u0131nda h\u00fccre y\u0131k\u0131m\u0131na u\u011frayarak geriler ve yok olur. Eri\u015fkin insanlarda s\u00f6z konusu omurlardan d\u00f6rd\u00fc kayna\u015farak, d\u0131\u015fa do\u011fru \u00e7\u0131k\u0131nt\u0131 yapmayan tek bir omur halinde bulunur. Ayn\u0131 \u015fekilde balina ve kar\u0131ncayiyen embriyolar\u0131 geli\u015fim a\u015famas\u0131nda di\u015f \u00e7\u0131kart\u0131r, fakat yine do\u011fumdan \u00f6nce \u00e7enekemi\u011fine g\u00f6m\u00fclmek suretiyle bunlar\u0131 kaybederler. S\u00f6z konusu \u00f6zellikler, ortaya \u00e7\u0131kt\u0131klar\u0131 organizmalar a\u00e7\u0131s\u0131ndan yarars\u0131zd\u0131r. Bir ak\u0131ll\u0131 tasar\u0131mc\u0131n\u0131n neden bu i\u015fe yaramaz \u00f6zellikleri tasarlay\u0131p bu hayvanlar\u0131n geli\u015fim dizgesine katt\u0131\u011f\u0131 ve \u00fcst\u00fcne \u00fcstl\u00fck k\u0131sa bir s\u00fcre sonra ortadan kald\u0131rd\u0131\u011f\u0131 elbette merak konusu. Di\u011fer yandan insanlar\u0131n, \u015fempanzelerin, balinalar\u0131n veya kar\u0131ncayiyenlerin ayn\u0131 ortak k\u00f6kenden geldikleri ve ortak atalar\u0131 olan hayvan\u0131n bu \u00f6zellikleri do\u011fumdan sonra da koruyarak kulland\u0131\u011f\u0131 d\u00fc\u015f\u00fcn\u00fcld\u00fc\u011f\u00fcnde, verdi\u011fimiz \u00f6rnek \u015fa\u015f\u0131rt\u0131c\u0131 olmaktan \u00e7\u0131kar. Kuyruk, insan soyuna uzanan s\u00fcrecin bir noktas\u0131nda avantajl\u0131 olmaktan \u00e7\u0131km\u0131\u015f ve b\u00f6ylece eri\u015fkin fenotipinden elenmi\u015ftir.<\/p>\n

K\u00f6relmi\u015f organlar sadece embriyoda de\u011fil, eri\u015fkin organizmalarda da bulunur. \u0130nsan omurgas\u0131 kuyruksuz maymunlar\u0131nkine \u00e7ok benzer. Oysa omurgam\u0131z\u0131n \u015fekli dik y\u00fcr\u00fcmeye san\u0131ld\u0131\u011f\u0131 kadar elveri\u015fli de\u011fildir. \u0130nsanlara ve maymunlara ihtiya\u00e7lar\u0131 olan omurga \u015feklini vermeyen ve bizi \u00f6m\u00fcr boyu bel rahats\u0131zl\u0131klar\u0131na ve s\u0131rt a\u011fr\u0131s\u0131na mahk\u00fbm eden bir ak\u0131ll\u0131 tasar\u0131mc\u0131 yerine, insanlar\u0131n ve kuyruksuz maymunlar\u0131n ortak atadan geldiklerini d\u00fc\u015f\u00fcnmek ve benzerli\u011fi bu \u00e7er\u00e7evede de\u011ferlendirmek \u00e7ok daha mant\u0131kl\u0131d\u0131r. \u0130nsan t\u00fcr\u00fcn\u00fcn atas\u0131, iki ayak \u00fczerinde y\u00fcr\u00fcyecek \u015fekilde de\u011fi\u015fime u\u011fram\u0131\u015ft\u0131r; fakat bu de\u011fi\u015fim her a\u00e7\u0131dan m\u00fckemmel olmaktan uzakt\u0131r.<\/p>\n

\u00a0<\/strong><\/p>\n

Kaynaklar<\/strong><\/p>\n

1) Fallon, J. F. ve Simandl, B. K.; \u201cEvidence of a role for cell death in the disappearance of the embryonic human tail\u201d, Am J Anat <\/em>152,1978, pp.111-129.<\/p>\n

2) Sapunar, D., Vilovic, K., England, M. ve Saraga-Babic, M.; \u201cMorphological diversity of dying cells during regression of the human tail\u201d Ann Anat<\/em> 183, 2001, s.217-222.<\/p>\n","protected":false},"excerpt":{"rendered":"

Yarat\u0131l\u0131\u015f\u00e7\u0131lar\u0131\u00a0 iddias\u0131: K\u00f6relmi\u015f organlar evrime kan\u0131t de\u011fildir Bilimin yan\u0131t\u0131: K\u00f6relmi\u015f organlar evrim s\u00fcrecinin miras\u0131d\u0131r \u00a0 \u201cK\u00f6relmi\u015f organlar, evrime kan\u0131t de\u011fildir. K\u00f6relmi\u015f organlar\u0131n atalardan kald\u0131\u011f\u0131 bir yan\u0131lg\u0131d\u0131r.\u201d (Harun Yahya, Yarat\u0131l\u0131\u015f Atlas\u0131, s.697)   Organizmay\u0131 olu\u015fturan her t\u00fcrl\u00fc bile\u015fen, kendini s\u00fcrd\u00fcrebilmek i\u00e7in enerjiye ihtiya\u00e7 duyar. Bu nedenle yararl\u0131 bir i\u015flev sa\u011flamayan bedensel par\u00e7alar\u0131n, hatta metabolik s\u00fcre\u00e7lerin elenmesi […]<\/p>\n","protected":false},"author":184,"featured_media":27924,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[21,32],"tags":[197,200,3736,3735],"class_list":["post-27810","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-biyoloji","category-evrim","tag-biyoloji","tag-evrim","tag-korelmis-organ","tag-yaratiscilara-yanit"],"acf":[],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t