{"id":19862,"date":"2017-04-05T07:02:04","date_gmt":"2017-04-05T05:02:04","guid":{"rendered":"http:\/\/master.hudo.com\/si\/2016\/04\/04\/ali-moski-res-izumiramo\/"},"modified":"2017-04-13T09:23:56","modified_gmt":"2017-04-13T07:23:56","slug":"ali-moski-res-izumiramo","status":"publish","type":"post","link":"https:\/\/hudo.com\/si\/lifestyle\/ali-moski-res-izumiramo\/","title":{"rendered":"Ali mo\u0161ki res izumiramo?"},"content":{"rendered":"
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foto:Profimedia<\/figcaption><\/figure>\n

Na predavanju na Akademiji znanosti v Canberri je priznana avstralska geneti\u010darka Jenny Graves pojasnjevala svojo teorijo o po\u010dasnem izumiranju mo\u0161kega kromosoma Y, ki naj bi bil v primerjavi s kromosomom X zelo slabo zasnovan.<\/p>\n

Kromosom Y propada<\/h2>\n

Gravesova trdi, da je kromosom Y, ki je neko\u010d imel pribli\u017eno isto \u0161tevilo genov, kot \u017eenski X, skozi stotine milijonov let evolucije ve\u010dino izgubil. Kromosom X, od katerega imajo \u017eenske dva, tako danes vsebuje 1000 genov, kromosom Y pa manj kot 100, med njimi gen, ki dolo\u010da mo\u0161ki spol.<\/p>\n

Kromosom Y je evolucijski spodrsljaj<\/h2>\n

\u017denski spol naj bi bil v prednosti predvsem zato, ker \u017eenske posedujejo dva kromosoma X, ki se lahko medsebojno ‘popravljata’. Kromosom Y pri mo\u0161kem pa je sam, zato je vsaka po\u0161kodba usodna. ”Od 1700 genov, ki jih je kromosom Y imel na za\u010detku, jih sedaj ima le \u0161e 45 – pa \u0161e ti so ve\u010dinoma nepomembni,” pravi Gravesova.<\/p>\n

Kaj se obeta \u010dlove\u0161tvu?<\/h2>\n

Gravesova pravi, da \u010de \u010dlove\u0161tvo v prihodnjih milijonih let ne bo izumrlo, se bodo pojavili novi geni za dolo\u010danje spola in s tem morda nova \u010dlove\u0161ka vrsta. Kot primer znanstvenica navaja japonsko vrsto podgane (lat. Tokudaia muenninki), ki je pre\u017eivela izumrtje kromosoma Y.<\/p>\n

<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"

Avstralska geneti\u010darka trdi, da se mo\u0161kemu kromosomu Y obeta klavrn konec in da se je proces izumiranja mo\u0161kega spola \u017ee za\u010del<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1091],"tags":[2360,4300,1645],"source":[1522,1518,1552],"supertag":[],"acf":[],"yoast_head":"\nAli mo\u0161ki res izumiramo? - Hudo Slovenija<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/hudo.com\/si\/lifestyle\/ali-moski-res-izumiramo\/\" \/>\n<meta property=\"og:locale\" content=\"sl_SI\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ali mo\u0161ki res izumiramo? - Hudo Slovenija\" \/>\n<meta property=\"og:description\" content=\"Avstralska geneti\u010darka trdi, da se mo\u0161kemu kromosomu Y obeta klavrn konec in da se je proces izumiranja mo\u0161kega spola \u017ee za\u010del\" \/>\n<meta property=\"og:url\" content=\"https:\/\/hudo.com\/si\/lifestyle\/ali-moski-res-izumiramo\/\" \/>\n<meta property=\"og:site_name\" content=\"Hudo Slovenija\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/hudo.si\" \/>\n<meta property=\"article:published_time\" content=\"2017-04-05T05:02:04+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2017-04-13T07:23:56+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/hudo.com\/si\/wp-content\/uploads\/sites\/2\/2016\/04\/genetika.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1733\" \/>\n\t<meta property=\"og:image:height\" content=\"1733\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"hudo\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@hudo_si\" \/>\n<meta name=\"twitter:site\" content=\"@hudo_si\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"hudo\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minuta\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/hudo.com\/si\/lifestyle\/ali-moski-res-izumiramo\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/hudo.com\/si\/lifestyle\/ali-moski-res-izumiramo\/\"},\"author\":{\"name\":\"hudo\",\"@id\":\"https:\/\/hudo.com\/si\/#\/schema\/person\/601cf3379633985b20f7e50f2bb47707\"},\"headline\":\"Ali mo\u0161ki res izumiramo?\",\"datePublished\":\"2017-04-05T05:02:04+00:00\",\"dateModified\":\"2017-04-13T07:23:56+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/hudo.com\/si\/lifestyle\/ali-moski-res-izumiramo\/\"},\"wordCount\":214,\"publisher\":{\"@id\":\"https:\/\/hudo.com\/si\/#organization\"},\"keywords\":[\"geni\",\"sprememba spola\",\"znanstvene zanimivosti\"],\"articleSection\":[\"Lifestyle\"],\"inLanguage\":\"sl-SI\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/hudo.com\/si\/lifestyle\/ali-moski-res-izumiramo\/\",\"url\":\"https:\/\/hudo.com\/si\/lifestyle\/ali-moski-res-izumiramo\/\",\"name\":\"Ali mo\u0161ki res izumiramo? 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