{"id":616,"date":"2015-12-21T10:57:13","date_gmt":"2015-12-21T09:57:13","guid":{"rendered":"https:\/\/sperimentando.com\/?p=616"},"modified":"2019-03-17T11:54:56","modified_gmt":"2019-03-17T10:54:56","slug":"introduzione-alla-biologia-molecolare","status":"publish","type":"post","link":"https:\/\/sperimentando.com\/?p=616","title":{"rendered":"Introduzione alla biologia molecolare"},"content":{"rendered":"<p><iframe loading=\"lazy\" id=\"iframe_container\" src=\"https:\/\/prezi.com\/embed\/3tsqhlgsoksg\/?bgcolor=ffffff&amp;lock_to_path=0&amp;autoplay=0&amp;autohide_ctrls=0&amp;landing_data=bHVZZmNaNDBIWnNjdEVENDRhZDFNZGNIUE43MHdLNWpsdFJLb2ZHanI0bExMeUl0OSswKzJBcHhVTWxYNDVqYUJ3PT0&amp;landing_sign=p0sPweilnz_xvPJ-txmwjZgOTIzkZSeI-dS1PYHlKRo\" width=\"550\" height=\"400\" frameborder=\"0\" allowfullscreen=\"allowfullscreen\"><\/iframe><\/p>\n<p>Qual&#8217;\u00e8 la funzione del DNA nelle cellule?<\/p>\n<p>Il ruolo dell&#8217;acido nucleico<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-615\" src=\"https:\/\/sperimentando.com\/wp-content\/uploads\/2015\/12\/357px-Hershey_Chase_experiment.png\" alt=\"357px-Hershey_Chase_experiment\" width=\"357\" height=\"282\" srcset=\"https:\/\/sperimentando.com\/wp-content\/uploads\/2015\/12\/357px-Hershey_Chase_experiment.png 357w, https:\/\/sperimentando.com\/wp-content\/uploads\/2015\/12\/357px-Hershey_Chase_experiment-300x237.png 300w\" sizes=\"auto, (max-width: 357px) 100vw, 357px\" \/><\/p>\n<p>La prova che il nucleo determina la specie durante la riproduzione:<\/p>\n<p><a href=\"https:\/\/www.researchgate.net\/publication\/304379742_Acetabularia_Haemmerling%27s_Confirmation_that_the_Nucleus_Determines_the_Species_Selected_During_Regeneration\">https:\/\/www.researchgate.net\/publication\/304379742_Acetabularia_Haemmerling%27s_Confirmation_that_the_Nucleus_Determines_the_Species_Selected_During_Regeneration<\/a><\/p>\n<p>Il DNA: la sequenza conta!<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-618\" src=\"https:\/\/sperimentando.com\/wp-content\/uploads\/2015\/12\/07.shema-sinteza-organizmov.png\" alt=\"07.shema-sinteza-organizmov\" width=\"800\" height=\"360\" srcset=\"https:\/\/sperimentando.com\/wp-content\/uploads\/2015\/12\/07.shema-sinteza-organizmov.png 800w, https:\/\/sperimentando.com\/wp-content\/uploads\/2015\/12\/07.shema-sinteza-organizmov-300x135.png 300w, https:\/\/sperimentando.com\/wp-content\/uploads\/2015\/12\/07.shema-sinteza-organizmov-768x346.png 768w, https:\/\/sperimentando.com\/wp-content\/uploads\/2015\/12\/07.shema-sinteza-organizmov-624x281.png 624w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/><\/p>\n<p><a href=\"http:\/\/www.scientificamerican.com\/article\/synthetic-genome-cell\/\" target=\"_blank\" rel=\"noopener\">http:\/\/www.scientificamerican.com\/article\/synthetic-genome-cell\/<\/a><\/p>\n<p><a href=\"http:\/\/www.jcvi.org\/cms\/research\/projects\/first-self-replicating-synthetic-bacterial-cell\/overview\/\" target=\"_blank\" rel=\"noopener\">http:\/\/www.jcvi.org\/cms\/research\/projects\/first-self-replicating-synthetic-bacterial-cell\/overview\/<\/a><\/p>\n<p>\u00e8 tutto nella sequenza?<\/p>\n<p><a class=\"ot-anchor aaTEdf\" dir=\"ltr\" href=\"http:\/\/amara.org\/en\/videos\/QNB2wKNJYfmE\/url\/1719587\/?tab=video%0A#DNA\" target=\"_blank\" rel=\"nofollow noopener\">http:\/\/amara.org\/en\/videos\/QNB2wKNJYfmE\/url\/1719587\/?tab=video<\/a><\/p>\n<p>La struttura del DNA: la struttura suggerisce possibili funzioni<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-623\" src=\"https:\/\/sperimentando.com\/wp-content\/uploads\/2015\/12\/doppia-elica.gif\" alt=\"doppia elica\" width=\"250\" height=\"299\" \/><\/p>\n<p><a href=\"http:\/\/www.exploratorium.edu\/origins\/coldspring\/printit.html\" target=\"_blank\" rel=\"noopener\">http:\/\/www.exploratorium.edu\/origins\/coldspring\/printit.html<\/a><\/p>\n<p>non abbiamo ancora finito di scoprire perch\u00e8 il DNA \u00e8 la molecola adatta a conservare l&#8217;informazione genetica, novit\u00e0 ogni giorno:\u00a0<a href=\"http:\/\/phys.org\/news\/2016-08-dna-dynamic-nature-well-suited-blueprint.html\">http:\/\/phys.org\/news\/2016-08-dna-dynamic-nature-well-suited-blueprint.html<\/a><\/p>\n<p>Il DNA \u00e8 il miglior supporto per conservare le informazioni che conosciamo.. altro che computer!<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-1148\" src=\"https:\/\/sperimentando.com\/wp-content\/uploads\/2015\/12\/DNAdataStorage.jpg\" alt=\"DNAdataStorage\" width=\"630\" height=\"403\" srcset=\"https:\/\/sperimentando.com\/wp-content\/uploads\/2015\/12\/DNAdataStorage.jpg 630w, https:\/\/sperimentando.com\/wp-content\/uploads\/2015\/12\/DNAdataStorage-300x192.jpg 300w\" sizes=\"auto, (max-width: 630px) 100vw, 630px\" \/><\/p>\n<p>come si replica dunque il DNA? proviamo a immaginare un esperimento..<\/p>\n<p><a href=\"https:\/\/it.wikipedia.org\/wiki\/Esperimento_di_Meselson-Stahl\" target=\"_blank\" rel=\"noopener\">https:\/\/it.wikipedia.org\/wiki\/Esperimento_di_Meselson-Stahl<\/a><\/p>\n<p>ora che sappiamo come si replica, proviamo a dare un senso a cosa significa..<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-624\" src=\"https:\/\/sperimentando.com\/wp-content\/uploads\/2015\/12\/bacterial_translation.jpg\" alt=\"bacterial_translation\" width=\"800\" height=\"600\" srcset=\"https:\/\/sperimentando.com\/wp-content\/uploads\/2015\/12\/bacterial_translation.jpg 800w, https:\/\/sperimentando.com\/wp-content\/uploads\/2015\/12\/bacterial_translation-300x225.jpg 300w, https:\/\/sperimentando.com\/wp-content\/uploads\/2015\/12\/bacterial_translation-768x576.jpg 768w, https:\/\/sperimentando.com\/wp-content\/uploads\/2015\/12\/bacterial_translation-624x468.jpg 624w\" sizes=\"auto, (max-width: 800px) 100vw, 800px\" \/> <img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-625\" src=\"https:\/\/sperimentando.com\/wp-content\/uploads\/2015\/12\/Ribosome.jpg\" alt=\"Ribosome\" width=\"468\" height=\"346\" srcset=\"https:\/\/sperimentando.com\/wp-content\/uploads\/2015\/12\/Ribosome.jpg 468w, https:\/\/sperimentando.com\/wp-content\/uploads\/2015\/12\/Ribosome-300x222.jpg 300w\" sizes=\"auto, (max-width: 468px) 100vw, 468px\" \/><\/p>\n<p>il codice genetico<\/p>\n<p>quanto lunga \u00e8 una parola?<\/p>\n<p><a href=\"https:\/\/en.wikipedia.org\/wiki\/Crick,_Brenner_et_al._experiment\" target=\"_blank\" rel=\"noopener\">https:\/\/en.wikipedia.org\/wiki\/Crick,_Brenner_et_al._experiment<\/a><\/p>\n<p><a href=\"http:\/\/www.sciencedirect.com\/science\/article\/pii\/S009286740700253X\" target=\"_blank\" rel=\"noopener\">http:\/\/www.sciencedirect.com\/science\/article\/pii\/S009286740700253X<\/a><\/p>\n<p>cracking the code<\/p>\n<p><a href=\"https:\/\/it.wikipedia.org\/wiki\/Codice_genetico\" target=\"_blank\" rel=\"noopener\">https:\/\/it.wikipedia.org\/wiki\/Codice_genetico<\/a><\/p>\n<p>schede attivit\u00e0 in inglese sul codice genetico e le mutazioni:<\/p>\n<ol>\n<li><a href=\"https:\/\/docs.google.com\/document\/d\/17acVzo-cdMJYA_pObH04HKiPEJ6HV4JG9lA83ZbBHL0\/edit?usp=sharing\">scheda pratica sulle mutazioni e la terapia genica<\/a><\/li>\n<li>scheda pratica sul codice genetico con <a href=\"https:\/\/drive.google.com\/file\/d\/1QntU1TIcXrppCH5IyHhg4yDk2J2gkjHr\/view?usp=sharing\">foglio di lavoro stampabile<\/a> e <a href=\"https:\/\/drive.google.com\/file\/d\/1pDTlcVyQQ238zFia02HV2i3YKT2mfN--\/view?usp=sharing\">istruzioni per il docente<\/a><\/li>\n<\/ol>\n<p>i geni sono immobili? l&#8217;espressione &#8220;dinamica&#8221;<\/p>\n<p>prima puntata:<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" class=\"alignnone size-full wp-image-626\" src=\"https:\/\/sperimentando.com\/wp-content\/uploads\/2015\/12\/Bacterial_growth_monod.png\" alt=\"Bacterial_growth_monod\" width=\"325\" height=\"258\" srcset=\"https:\/\/sperimentando.com\/wp-content\/uploads\/2015\/12\/Bacterial_growth_monod.png 325w, https:\/\/sperimentando.com\/wp-content\/uploads\/2015\/12\/Bacterial_growth_monod-300x238.png 300w\" sizes=\"auto, (max-width: 325px) 100vw, 325px\" \/><\/p>\n<p>seconda puntata:<\/p>\n<p>Che cos&#8217;\u00e8 un gene? Beh la definizione di gene \u00e8 cambiata varie volte nella recente storia della biologia, in base alla precisione delle nostre conoscenze e per servire allo scopo di essere una definizione funzionale (<a href=\"http:\/\/www.genetics.org\/content\/205\/4\/1353\">http:\/\/www.genetics.org\/content\/205\/4\/1353<\/a>) (<a href=\"https:\/\/sperimentando.com\/wp-content\/uploads\/2017\/07\/portin2017.pdf\">articolo integrale in pdf<\/a>)<\/p>\n<p>Forse la definizione migliore che possiamo fornire in questo momento \u00e8 all&#8217;incirca questa:<\/p>\n<p><strong>Un gene \u00e8 una sequenza di DNA (i cui segmenti non sono necessariamente esclusivamente contigui) che produce sequenze di RNA e\/o proteine ad esso correlate. Ogni gene \u00e8 parte di una complessa rete di geni all&#8217;interno di un genoma e come parte di questa rete produce effetti osservabili al livello fenotipico. La sequenza di DNA di un gene e a volte anche la sua struttura vengono ereditati entrando a far parte della rete di geni del nuovo individuo nel quale contribuiscono a produrre un fenotipo.\u00a0<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Qual&#8217;\u00e8 la funzione del DNA nelle cellule? Il ruolo dell&#8217;acido nucleico La prova che il [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":620,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":true,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2},"jetpack_post_was_ever_published":false},"categories":[53,4],"tags":[11,16,18],"class_list":["post-616","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-scalc","category-ragazzi","tag-biologia-molecolare","tag-dna","tag-scienza"],"jetpack_publicize_connections":[],"jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p5Zhdi-9W","jetpack_likes_enabled":true,"jetpack_featured_media_url":"https:\/\/sperimentando.com\/wp-content\/uploads\/2015\/12\/0c69894.jpg","_links":{"self":[{"href":"https:\/\/sperimentando.com\/index.php?rest_route=\/wp\/v2\/posts\/616","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sperimentando.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sperimentando.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sperimentando.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sperimentando.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=616"}],"version-history":[{"count":10,"href":"https:\/\/sperimentando.com\/index.php?rest_route=\/wp\/v2\/posts\/616\/revisions"}],"predecessor-version":[{"id":1512,"href":"https:\/\/sperimentando.com\/index.php?rest_route=\/wp\/v2\/posts\/616\/revisions\/1512"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sperimentando.com\/index.php?rest_route=\/wp\/v2\/media\/620"}],"wp:attachment":[{"href":"https:\/\/sperimentando.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=616"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sperimentando.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=616"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sperimentando.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=616"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}