Son s\u00f6z\u00fc yine kad\u0131n s\u00f6yl\u00fcyor. Spermler yumurtay\u0131 d\u00f6llemek i\u00e7in yar\u0131\u015fa dursunlar, yar\u0131\u015f\u0131 kimin kazanaca\u011f\u0131na kad\u0131n\u0131n yumurtas\u0131 karar veriyor.<\/p>\n
Spermlerin yumurtaya do\u011fru yar\u0131\u015ft\u0131\u011f\u0131, en h\u0131zl\u0131 gelen spermin yumurtay\u0131 d\u00f6lledi\u011fi anlat\u0131s\u0131 do\u011fru de\u011filmi\u015f. Hangi spermle d\u00f6llenece\u011fini kad\u0131n\u0131n yumurtas\u0131 belirliyormu\u015f.<\/p>\n
\u201cYumurta pasif de\u011fildir. Se\u00e7er. En h\u0131zl\u0131y\u0131 de\u011fil, en uyumlu olan\u0131 se\u00e7er\u201d diyen T\u00fcp Bebek Uzman\u0131 Op. Dr. Bet\u00fcl Kalay, bilimin yeni ke\u015ffi hakk\u0131nda \u015fu bilgileri verdi:<\/p>\n
YARI\u015e DE\u011e\u0130L SE\u00c7\u0130M<\/strong><\/p>\n \u201cHayat bir yar\u0131\u015fla de\u011fil, biyokimyasal uyumla ba\u015flar. Stockholm \u00dcniversitesi ve Manchester \u00dcniversitesi\u2019nden \u00e7\u0131\u011f\u0131r a\u00e7an ara\u015ft\u0131rmalar, insan yumurtalar\u0131n\u0131n pasif al\u0131c\u0131lar olmad\u0131\u011f\u0131n\u0131, aksine hangi spermin kendilerini d\u00f6lleyece\u011fini se\u00e7en aktif yap\u0131lar oldu\u011funu ortaya koyuyor. Yumurtalar, belirli ve uyumlu spermleri y\u00f6nlendirmek i\u00e7in \u201ckemoatraktan\u201d ad\u0131 verilen kimyasal sinyaller salg\u0131lar. Bu da s\u00fcrecin h\u0131zla kazan\u0131lan bir yar\u0131\u015ftan ziyade bir se\u00e7im oldu\u011funu g\u00f6sterir.<\/p>\n Yumurtalar, belirli spermleri \u00e7ekmek i\u00e7in kemoatraktanlar salg\u0131lar ve genetik olarak daha uyumlu olanlar\u0131 tercih eder. Yani sadece en h\u0131zl\u0131 ya da en g\u00fc\u00e7l\u00fc olan\u0131 de\u011fil.\u00a0<\/p>\n Hatta yumurtalar, farkl\u0131 erkeklerden gelen spermler aras\u0131nda se\u00e7im yapabilir; bazen kad\u0131n\u0131n partneri yerine ba\u015fka bir erke\u011fin spermini tercih edebilir. Bu durum, y\u00fcksek d\u00fczeyde se\u00e7ici bir kontrol oldu\u011funu g\u00f6sterir.\u00a0<\/p>\n Spermlerin k\u00f6r\u00fc k\u00f6r\u00fcne yumurtaya do\u011fru yar\u0131\u015ft\u0131\u011f\u0131 eski anlat\u0131 yanl\u0131\u015ft\u0131r; bunun yerine d\u00f6llenme, kimyasal olarak y\u00f6nlendirilen karma\u015f\u0131k bir se\u00e7ilim s\u00fcrecidir.<\/p>\n D\u0130\u011eER SPERMLER\u0130N \u0130\u00c7ER\u0130 G\u0130RMES\u0130N\u0130 ENGELL\u0130YOR<\/strong><\/p>\n Proceedings of the Royal Society B dergisinde yay\u0131mlanan bu \u00e7al\u0131\u015fma, yumurtalar\u0131n \u201cgizli di\u015fi se\u00e7imi\u201dni kolayla\u015ft\u0131rmak i\u00e7in kimyasal sinyaller kulland\u0131\u011f\u0131n\u0131 g\u00f6stermi\u015ftir. \u201cSe\u00e7ilen\u201d sperm yumurtayla birle\u015fti\u011fi anda, yumurta yap\u0131s\u0131n\u0131 h\u0131zla de\u011fi\u015ftirerek di\u011fer spermlerin i\u00e7eri girmesini engeller.<\/p>\n Bu ke\u015fif, insan d\u00f6llenmesini yeniden tan\u0131mlayarak ya\u015fam\u0131n ba\u015flang\u0131c\u0131n\u0131n yaln\u0131zca bir yar\u0131\u015f de\u011fil, biyokimyasal uyumla ilgili oldu\u011funu vurgular.\u201d<\/p>\n \u00a0<\/p>\n Kaynak: (BYZHA) Beyaz Haber Ajans\u0131<\/p>\n","protected":false},"excerpt":{"rendered":" Son s\u00f6z\u00fc yine kad\u0131n s\u00f6yl\u00fcyor.<\/p>\n","protected":false},"author":1,"featured_media":5057,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31],"tags":[],"class_list":["post-5056","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-saglik"],"_links":{"self":[{"href":"https:\/\/ekonomievreni.com\/index.php?rest_route=\/wp\/v2\/posts\/5056","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ekonomievreni.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ekonomievreni.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ekonomievreni.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ekonomievreni.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=5056"}],"version-history":[{"count":1,"href":"https:\/\/ekonomievreni.com\/index.php?rest_route=\/wp\/v2\/posts\/5056\/revisions"}],"predecessor-version":[{"id":5058,"href":"https:\/\/ekonomievreni.com\/index.php?rest_route=\/wp\/v2\/posts\/5056\/revisions\/5058"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ekonomievreni.com\/index.php?rest_route=\/wp\/v2\/media\/5057"}],"wp:attachment":[{"href":"https:\/\/ekonomievreni.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=5056"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ekonomievreni.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=5056"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ekonomievreni.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=5056"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}