{"id":370,"date":"2018-05-18T00:37:07","date_gmt":"2018-05-17T21:37:07","guid":{"rendered":"http:\/\/mde.biologia.gr\/marpa\/?p=370"},"modified":"2018-05-18T00:37:07","modified_gmt":"2018-05-17T21:37:07","slug":"dna-from-the-beginning","status":"publish","type":"post","link":"https:\/\/marpa.biologia.gr\/index.php\/2018\/05\/18\/dna-from-the-beginning\/","title":{"rendered":"DNA- from the beginning"},"content":{"rendered":"<p><a href=\"http:\/\/www.dnaftb.org\/27\/bio.html\" target=\"_blank\" rel=\"noopener noreferrer\">http:\/\/www.dnaftb.org\/27\/bio.html<\/a><\/p>\n<p>n the 1920s, experiments showed that a harmless strain of bacteria can become infectious when mixed with a virulent strain of bacteria that had been killed. The dead bacteria apparently provide some chemical that &#8220;transforms&#8221; the harmless bacteria to infectious ones. This so-called &#8220;transforming principle&#8221; appeared to be a gene.<\/p>\n<p>A team of scientists led by Oswald Avery at the Rockefeller Institute, rigorously followed up on these experiments in the 1940&#8217;s. They found that a pure extract of the &#8220;transforming principle&#8221; was unaffected by treatment with protein-digesting enzymes but was destroyed by a DNA-digesting enzyme. This showed that the transforming principle is DNA \u2014 and, by extension, a gene is made of DNA. Still, many scientists were slow to accept this clear proof that DNA, not protein, is the genetic molecule.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>http:\/\/www.dnaftb.org\/27\/bio.html n the 1920s, experiments showed that a harmless strain of bacteria can become infectious when mixed with a virulent strain of bacteria that had been killed. The dead bacteria apparently provide some chemical&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":371,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-370","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-4"],"jetpack_featured_media_url":"https:\/\/marpa.biologia.gr\/wp-content\/uploads\/2018\/05\/concept17.jpg","_links":{"self":[{"href":"https:\/\/marpa.biologia.gr\/index.php\/wp-json\/wp\/v2\/posts\/370","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/marpa.biologia.gr\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/marpa.biologia.gr\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/marpa.biologia.gr\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/marpa.biologia.gr\/index.php\/wp-json\/wp\/v2\/comments?post=370"}],"version-history":[{"count":0,"href":"https:\/\/marpa.biologia.gr\/index.php\/wp-json\/wp\/v2\/posts\/370\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/marpa.biologia.gr\/index.php\/wp-json\/wp\/v2\/media\/371"}],"wp:attachment":[{"href":"https:\/\/marpa.biologia.gr\/index.php\/wp-json\/wp\/v2\/media?parent=370"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/marpa.biologia.gr\/index.php\/wp-json\/wp\/v2\/categories?post=370"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/marpa.biologia.gr\/index.php\/wp-json\/wp\/v2\/tags?post=370"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}