{"id":2412,"date":"2010-06-11T16:33:42","date_gmt":"2010-06-11T14:33:42","guid":{"rendered":"https:\/\/ellipse.prbb.org\/?p=2412"},"modified":"2024-06-03T11:57:36","modified_gmt":"2024-06-03T09:57:36","slug":"snps-variacions-dun-tema","status":"publish","type":"post","link":"https:\/\/ellipse.prbb.org\/ca\/snps-variacions-dun-tema\/","title":{"rendered":"SNPs: variacions d\u2019un tema"},"content":{"rendered":"<p>Una mirada al voltant d&#8217;una sala et diu que cada persona t\u00e9 lleugeres difer\u00e8ncies en el seu aspecte f\u00edsic. Aquestes difer\u00e8ncies poden estar directament relacionades amb la composici\u00f3 individual de l\u2019<strong>ADN<\/strong> de&nbsp; cada persona. De vegades, les <strong>mutacions<\/strong> en l&#8217;ADN causen canvis subtils en el funcionament d&#8217;una prote\u00efna, per\u00f2 altres donen lloc a canvis en la forma en qu\u00e8 una c\u00e8l\u00b7lula es comporta.<\/p>\n<p>Tothom adquireix alguns canvis en el seu ADN durant la seva vida. Aquests canvis ocorren de diferents maneres: alguns es produeixen en les c\u00e8l\u00b7lules del cos, per\u00f2 no passen als fills; altres errors es d\u00f3nen en l&#8217;ADN de les c\u00e8l\u00b7lules que produeixen els \u00f2vuls i els espermatozous, i aquests s\u00ed poden passar a la descend\u00e8ncia.<\/p>\n<p>Les variacions en l&#8217;ADN es denominen polimorfismes (literalment \u00abmoltes formes\u00bb) i molts d&#8217;aquests polimorfismes gen\u00e8tics s\u00f3n responsables de les difer\u00e8ncies entre les persones com ara el cabell o el color d&#8217;ulls. Algunes variacions en els gens, per\u00f2, poden tamb\u00e9 donar lloc a un major risc de malaltia. Un <strong>polimorfisme de nucle\u00f2tid \u00fanic (SNP)<\/strong> \u00e9s un canvi gen\u00e8tic que afecta a un sol nucle\u00f2tid dins de la seq\u00fc\u00e8ncia d&#8217;ADN d&#8217;una persona.<\/p>\n<figure id=\"attachment_2586\" aria-describedby=\"caption-attachment-2586\" style=\"width: 591px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" class=\" wp-image-2586\" src=\"https:\/\/ellipse.prbb.org\/wp-content\/uploads\/2010\/06\/Dna-SNP.svg.png\" alt=\"Un polimorfisme de nucle\u00f2tid \u00fanic (SNP) \u00e9s un canvi gen\u00e8tic que afecta a un sol nucle\u00f2tid dins de la seq\u00fc\u00e8ncia d'ADN d'una persona.\" width=\"591\" height=\"385\" srcset=\"https:\/\/ellipse.prbb.org\/wp-content\/uploads\/2010\/06\/Dna-SNP.svg.png 1024w, https:\/\/ellipse.prbb.org\/wp-content\/uploads\/2010\/06\/Dna-SNP.svg-343x224.png 343w, https:\/\/ellipse.prbb.org\/wp-content\/uploads\/2010\/06\/Dna-SNP.svg-768x501.png 768w, https:\/\/ellipse.prbb.org\/wp-content\/uploads\/2010\/06\/Dna-SNP.svg-920x600.png 920w\" sizes=\"auto, (max-width: 591px) 100vw, 591px\" \/><figcaption id=\"caption-attachment-2586\" class=\"wp-caption-text\">Un polimorfisme de nucle\u00f2tid \u00fanic (SNP) \u00e9s un canvi gen\u00e8tic que afecta a un sol nucle\u00f2tid dins de la seq\u00fc\u00e8ncia d&#8217;ADN d&#8217;una persona.<\/figcaption><\/figure>\n<p>Els <strong>SNPs representen al voltant del 90% de la variaci\u00f3 gen\u00e8tica humana<\/strong>. De mitjana n\u2019hi ha un per cada 100-300 bases d\u2019entre els 3 milions de bases (de nucle\u00f2tids) del genoma hum\u00e0. Cient\u00edfics al PRBB i a d\u2019altres centres de recerca d\u2019arreu del m\u00f3n utilitzen una s\u00e8rie de t\u00e8cniques que permeten comprendre millor com els SNPs poden predisposar als individus a certes malalties i fins i tot influir en la seva resposta als medicaments.<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tothom adquireix alguns canvis en el seu ADN durant la seva vida. Aquestes variacions en l&#8217;ADN es denominen polimorfismes i s\u00f3n responsables de les difer\u00e8ncies entre les persones, per\u00f2 tamb\u00e9 poden donar lloc a un major risc de malaltia.<\/p>\n","protected":false},"author":2,"featured_media":2406,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[30],"tags":[275,513,332,287,237,243],"new-type":[35],"class_list":["post-2412","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-ciencia-i-societat","tag-adn","tag-ciencia-al-descobert","tag-gens","tag-diversitat","tag-polimorfisme","tag-snp-ca","new-type-noticies"],"acf":[],"_links":{"self":[{"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/posts\/2412","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/comments?post=2412"}],"version-history":[{"count":6,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/posts\/2412\/revisions"}],"predecessor-version":[{"id":42902,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/posts\/2412\/revisions\/42902"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/media\/2406"}],"wp:attachment":[{"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/media?parent=2412"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/categories?post=2412"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/tags?post=2412"},{"taxonomy":"new-type","embeddable":true,"href":"https:\/\/ellipse.prbb.org\/ca\/wp-json\/wp\/v2\/new-type?post=2412"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}