{"id":1383791,"date":"2024-04-25T13:41:00","date_gmt":"2024-04-25T11:41:00","guid":{"rendered":"https:\/\/dnaera.com\/cs\/?p=1383791"},"modified":"2026-01-28T14:30:47","modified_gmt":"2026-01-28T13:30:47","slug":"dna-chybejici-cast-hadanky-na-ceste-k-nasim-cilum","status":"publish","type":"post","link":"https:\/\/dnaera.com\/cs\/blog\/dna-chybejici-cast-hadanky-na-ceste-k-nasim-cilum\/","title":{"rendered":"DNA, chyb\u011bj\u00edc\u00ed \u010d\u00e1st h\u00e1danky na cest\u011b k na\u0161im c\u00edl\u016fm"},"content":{"rendered":"\n

Genetick\u00e9 testov\u00e1n\u00ed se postupn\u011b st\u00e1v\u00e1 st\u00e1le b\u011b\u017en\u011bj\u0161\u00ed sou\u010d\u00e1st\u00ed na\u0161ich \u017eivot\u016f. Anal\u00fdza DNA n\u00e1m u\u017e dnes pom\u011brn\u011b b\u011b\u017en\u011b pom\u00e1h\u00e1 odhalovat d\u011bdi\u010dn\u00e9 predispozice, objevovat osobnostn\u00ed rozd\u00edly a l\u00e9pe porozum\u011bt na\u0161emu t\u011blu \u2013 v\u010detn\u011b siln\u00fdch str\u00e1nek i omezen\u00ed. K \u010demu je v\u0161ak u\u017eite\u010dn\u00e1 a jak funguje? <\/em><\/p>\n\n\n\n

Pozn\u00e1n\u00ed DNA n\u00e1m pom\u00e1h\u00e1 p\u0159izp\u016fsobit \u017eivotn\u00ed styl<\/h2>\n\n\n\n

Na\u0161e geny nemus\u00ed ur\u010dovat n\u00e1\u0161 osud. Zm\u011bn\u00edme-li \u017eivotn\u00ed styl nap\u0159\u00edklad prost\u0159ednictv\u00edm \u00fapravy stravy a pravideln\u00e9ho pohybu, m\u016f\u017eeme v\u00fdrazn\u011b ovlivnit, jak se na\u0161e geny projev\u00ed. DNA si m\u016f\u017eeme p\u0159edstavit jako z\u00e1kladn\u00ed materi\u00e1l, na kter\u00fd p\u016fsob\u00ed prost\u0159ed\u00ed. Bez jej\u00ed anal\u00fdzy n\u00e1m v\u0161ak p\u0159i snaze o zm\u011bnu m\u016f\u017ee chyb\u011bt d\u016fle\u017eit\u00fd d\u00edlek do skl\u00e1da\u010dky.<\/p>\n\n\n\n

Co je vlastn\u011b DNA?<\/h2>\n\n\n\n

Deoxyribonukleov\u00e1 kyselina nebo zkr\u00e1cen\u011b DNA je d\u011bdi\u010dn\u00fdm materi\u00e1lem u t\u00e9m\u011b\u0159 v\u0161ech organism\u016f \u017eij\u00edc\u00edch na na\u0161\u00ed planet\u011b, od t\u011bch nejprimitivn\u011bj\u0161\u00edch jako jsou mikroorganismy, p\u0159es rostliny, houby, zv\u00ed\u0159ata a\u017e po \u010dlov\u011bka (v\u00fdjimku tvo\u0159\u00ed n\u011bkter\u00e9 viry, jejich\u017e genetickou informaci tvo\u0159\u00ed molekula RNA).<\/p>\n\n\n\n

V\u011bt\u0161ina DNA je um\u00edst\u011bna v bun\u011b\u010dn\u00e9m j\u00e1dru (podle toho naz\u00fdvan\u00e1 tak\u00e9 jadern\u00e1 DNA), ale men\u0161\u00ed mno\u017estv\u00ed DNA se nach\u00e1z\u00ed iv jin\u00fdch bun\u011b\u010dn\u00fdch organel\u00e1ch.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Lidsk\u00e9 t\u011blo je tvo\u0159eno biliony bun\u011bk, z nich\u017e t\u00e9m\u011b\u0159 ka\u017ed\u00e1 obsahuje tut\u00e9\u017e molekulu DNA<\/h2>\n\n\n\n

Tato molekula DNA zahrnuje cel\u00fd genetick\u00fd materi\u00e1l, kter\u00fd ozna\u010dujeme pojmem genom. Informace v DNA je ulo\u017eena jako k\u00f3d sest\u00e1vaj\u00edc\u00ed ze \u010dty\u0159 chemick\u00fdch b\u00e1z\u00ed<\/strong>: adeninu (A), guaninu (G), cytosinu (C) a thyminu (T).<\/p>\n\n\n\n

Po\u0159ad\u00ed, nebo tak\u00e9 sekvence b\u00e1z\u00ed, ur\u010duje dostupn\u00e9 informace pro budov\u00e1n\u00ed a udr\u017eov\u00e1n\u00ed organismu analogicky ke zp\u016fsobu, jak\u00fdm se objevuj\u00ed p\u00edsmena abecedy v ur\u010dit\u00e9m po\u0159ad\u00ed a vytv\u00e1\u0159ej\u00ed slova a v\u011bty. B\u00e1ze DNA se navz\u00e1jem spojuj\u00ed, A s T a C s G, aby vytvo\u0159ily jednotky zvan\u00e9 b\u00e1zov\u00e9 p\u00e1ry. Ka\u017ed\u00e1 z b\u00e1z\u00ed je tak\u00e9 p\u0159ipojena k molekule cukru (deoxyrib\u00f3ze) a fosf\u00e1tu (zbytku kyseliny trihydrogenfosfore\u010dn\u00e9). B\u00e1ze, cukr a fosf\u00e1t se spolu naz\u00fdvaj\u00ed nukleotid. Nukleotidy jsou uspo\u0159\u00e1d\u00e1ny do dvou dlouh\u00fdch paraleln\u00edch \u0159et\u011bzc\u016f tvo\u0159\u00edc\u00edch takzvanou dvojz\u00e1vitnici nebo dvojitou spir\u00e1lu. Struktura dvojit\u00e9 spir\u00e1ly DNA se tak trochu podob\u00e1 zato\u010den\u00e9mu \u017eeb\u0159\u00edku, p\u0159i\u010dem\u017e b\u00e1zov\u00e9 p\u00e1ry tvo\u0159\u00ed p\u0159\u00ed\u010dky \u017eeb\u0159\u00edku a molekuly cukru a fosf\u00e1tu tvo\u0159\u00ed postrann\u00ed \u010d\u00e1sti (kostru \u017eeb\u0159\u00edku). DNA je v j\u00e1dru d\u016fkladn\u011b smot\u00e1na a uspo\u0159\u00e1d\u00e1na do chromozom\u016f, kter\u00fdch se v b\u011b\u017en\u00fdch t\u011blov\u00fdch bu\u0148k\u00e1ch nach\u00e1z\u00ed 23 p\u00e1r\u016f.<\/p>\n\n\n\n

\"\"<\/figure>\n\n\n\n

Lidsk\u00e1 DNA se skl\u00e1d\u00e1 z p\u0159ibli\u017en\u011b t\u0159\u00ed miliard b\u00e1zov\u00fdch p\u00e1r\u016f (p\u00edsmenek), p\u0159i\u010dem\u017e pr\u016fm\u011brn\u011b 99,9 % t\u011bchto b\u00e1z\u00ed je stejn\u00fdch u v\u0161ech lid\u00ed<\/strong>. Li\u0161\u00edme se tedy jen v 0,1 %. <\/strong>V\u011bd\u011bli jste nap\u0159\u00edklad, \u017ee \u010dlov\u011bk a zel\u00ed sd\u00edlej\u00ed na 40\u201350 % tut\u00e9\u017e DNA?<\/p>\n\n\n\n

Pro\u010d bychom se m\u011bli vlastn\u011b zaj\u00edmat o DNA?<\/h2>\n\n\n\n

DNA je zodpov\u011bdn\u00e1 za p\u0159enos v\u0161ech genetick\u00fdch informac\u00ed. DNA k\u00f3d si m\u016f\u017eeme p\u0159edstavit jako kucha\u0159skou knihu plnou recept\u016f, obsahuj\u00edc\u00ed v\u0161echny pokyny pot\u0159ebn\u00e9 pro va\u0161e t\u011blo, jeho spr\u00e1vn\u00fd v\u00fdvoj a fungov\u00e1n\u00ed. Recepty jsou v tomto p\u0159\u00edpad\u011b geny a jejich receptura je pot\u0159ebn\u00e1 pro tvorbu v\u00fdsledn\u00fdch produkt\u016f, v\u011bt\u0161inou b\u00edlkovin. Gen je specifick\u00fd \u00fasek DNA, kter\u00fd na\u0161e bu\u0148ky instruuje o tom, jak vytvo\u0159it protein. A pr\u00e1v\u011b proteiny prov\u00e1d\u011bj\u00ed d\u016fle\u017eit\u00e9 biologick\u00e9 \u00fakoly v na\u0161ich bu\u0148k\u00e1ch. P\u016fsob\u00ed nap\u0159\u00edklad jako d\u016fle\u017eit\u00e9 enzymy na tr\u00e1ven\u00ed nebo proteiny zaji\u0161\u0165uj\u00edc\u00ed elasticitu k\u016f\u017ee.<\/p>\n\n\n\n

Jednotliv\u00e9 zm\u011bny v DNA pak mohou zp\u016fsobit zm\u011bny v kvalit\u011b protein\u016f, podobn\u011b jako kdy\u017e se nedodr\u017e\u00ed postup v receptu. T\u00edmto zp\u016fsobem se mohou zm\u011bny v sekvenci DNA prom\u00edtnout do fungov\u00e1n\u00ed na\u0161eho t\u011bla.<\/p>\n\n\n\n

Zdroje:<\/strong><\/p>\n\n\n\n

    \n
  1. https:\/\/www.genome.gov\/genetics-glossary\/Deoxyribonucleic-Acid<\/a><\/li>\n<\/ol>\n\n\n\n

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

    Genetick\u00e9 testov\u00e1n\u00ed se postupn\u011b st\u00e1v\u00e1 st\u00e1le b\u011b\u017en\u011bj\u0161\u00ed sou\u010d\u00e1st\u00ed na\u0161ich \u017eivot\u016f. Anal\u00fdza DNA n\u00e1m u\u017e dnes pom\u011brn\u011b b\u011b\u017en\u011b pom\u00e1h\u00e1 odhalovat d\u011bdi\u010dn\u00e9 predispozice, objevovat osobnostn\u00ed rozd\u00edly a l\u00e9pe porozum\u011bt na\u0161emu t\u011blu \u2013 v\u010detn\u011b siln\u00fdch str\u00e1nek i omezen\u00ed. K \u010demu je v\u0161ak u\u017eite\u010dn\u00e1 a jak funguje?  Pozn\u00e1n\u00ed DNA n\u00e1m pom\u00e1h\u00e1 p\u0159izp\u016fsobit \u017eivotn\u00ed styl Na\u0161e geny nemus\u00ed ur\u010dovat n\u00e1\u0161 […]<\/p>\n","protected":false},"author":876,"featured_media":1383792,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"content-type":"","inline_featured_image":false,"footnotes":""},"categories":[33],"tags":[58,59],"place-taxonomy":[],"class_list":["post-1383791","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized-cs","tag-dna-analyza","tag-dna-test"],"acf":[],"views":5215,"_links":{"self":[{"href":"https:\/\/dnaera.com\/cs\/wp-json\/wp\/v2\/posts\/1383791","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/dnaera.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/dnaera.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/dnaera.com\/cs\/wp-json\/wp\/v2\/users\/876"}],"replies":[{"embeddable":true,"href":"https:\/\/dnaera.com\/cs\/wp-json\/wp\/v2\/comments?post=1383791"}],"version-history":[{"count":2,"href":"https:\/\/dnaera.com\/cs\/wp-json\/wp\/v2\/posts\/1383791\/revisions"}],"predecessor-version":[{"id":1383809,"href":"https:\/\/dnaera.com\/cs\/wp-json\/wp\/v2\/posts\/1383791\/revisions\/1383809"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/dnaera.com\/cs\/wp-json\/wp\/v2\/media\/1383792"}],"wp:attachment":[{"href":"https:\/\/dnaera.com\/cs\/wp-json\/wp\/v2\/media?parent=1383791"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/dnaera.com\/cs\/wp-json\/wp\/v2\/categories?post=1383791"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/dnaera.com\/cs\/wp-json\/wp\/v2\/tags?post=1383791"},{"taxonomy":"place-taxonomy","embeddable":true,"href":"https:\/\/dnaera.com\/cs\/wp-json\/wp\/v2\/place-taxonomy?post=1383791"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}