{"id":113929,"date":"2024-10-14T05:38:03","date_gmt":"2024-10-13T22:38:03","guid":{"rendered":"https:\/\/hotvideos24.online\/?p=113929"},"modified":"2024-10-14T05:38:03","modified_gmt":"2024-10-13T22:38:03","slug":"scientists-discover-how-complex-molecules-may-have-stabilized-to-spark-life-on-earth-sciencealert","status":"publish","type":"post","link":"https:\/\/hotvideos24.online\/?p=113929","title":{"rendered":"Scientists Discover How Complex Molecules May Have Stabilized to Spark Life on Earth : ScienceAlert"},"content":{"rendered":"<p> <script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3711241968723425\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-layout-key=\"-fb+5w+4e-db+86\"\r\n     data-ad-client=\"ca-pub-3711241968723425\"\r\n     data-ad-slot=\"7910942971\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><br \/>\n<\/p>\n<div>\n<p>Highly reactive <a href=\"https:\/\/sciencealert.com\/complex-molecules-detected-in-ancient-galaxy-near-the-dawn-of-time\">complex molecules<\/a> finding some sort of stability was a necessary step towards life getting started on Earth. Scientists think they&#8217;ve just discovered how these first began to stay intact and spark the journey towards organisms.<\/p>\n<p>We haven&#8217;t been able to explain how the simple molecules that would&#8217;ve been floating around in <a href=\"https:\/\/sciencealert.com\/we-just-got-even-more-evidence-that-ancient-earth-was-a-water-world\">the primordial waters<\/a> of early Earth eventually latched on to each other long enough to form something as complex as <a href=\"https:\/\/sciencealert.com\/rna-world-hypothesis\">RNA (ribonucleic acid)<\/a>.<\/p>\n<p>So researchers in Germany created conditions to match <a href=\"https:\/\/sciencealert.com\/the-continents-were-created-on-early-earth-by-giant-meteorite-impacts\">ancient Earth<\/a> in their laboratory. They focused on RNA<a href=\"https:\/\/sciencealert.com\/rna-world-hypothesis\"\/>-like units, synthetic chemical components capable of combining with each other in different combinations to create evolving strings of &#8216;information&#8217;, just like our own genetic material.<\/p>\n<p>&#8220;We know which molecules existed on the early Earth,&#8221; <a href=\"https:\/\/www.tum.de\/en\/news-and-events\/all-news\/press-releases\/details?tx_news_pi1%5Baction%5D=detail&amp;tx_news_pi1%5Bcontroller%5D=News&amp;tx_news_pi1%5Bnews_preview%5D=39812&amp;cHash=b609b61353bf566edfd2a4ae38788d53\">says<\/a> chemist Job Boekhoven, from the Technical University of Munich. &#8220;The question is: can we use this to replicate the origins of life in the lab?&#8221;<\/p>\n<p>When exposed to a &#8216;fuel&#8217; of high-energy molecules, the synthesized RNA-like units joined up and broke down constantly in various configurations and scenarios. By themselves, they did not remain connected for very long.<\/p>\n<p>What ultimately made the difference to molecule stabilization in the experiments was the introduction of additional short strands of preformed DNA (deoxyribonucleic acid) &#8216;templates&#8217;. This enabled more complex molecules to form more often and also last longer, pairing up with the template to create more stable double-stranded molecules.<\/p>\n<p>&#8220;The exciting part is that double strands lead to RNA folding, which can make the RNA catalytically active,&#8221; <a href=\"https:\/\/www.tum.de\/en\/news-and-events\/all-news\/press-releases\/details?tx_news_pi1%5Baction%5D=detail&amp;tx_news_pi1%5Bcontroller%5D=News&amp;tx_news_pi1%5Bnews_preview%5D=39812&amp;cHash=b609b61353bf566edfd2a4ae38788d53\">says<\/a> Boekhoven.<\/p>\n<p>With the preformed DNA added, the researchers noticed something approaching <a href=\"https:\/\/sciencealert.com\/evolution-may-be-happening-up-to-four-times-faster-than-we-thought\">natural selection<\/a>, which could explain how simple molecules were plucked out of the ooze and chosen to start the beginnings of life: structures that can move, sustain themselves, self-replicate, and adapt to their environment.<\/p>\n<p>Incredibly, the researchers then showed that once the template copying process started to take place it could change the properties of the membrane around them.<\/p>\n<p>The next question is how these DNA templates or strands might have come into being. That&#8217;s a topic for a future study, but the researchers are investigating several ideas about how this structure for self-assembly could have appeared.<\/p>\n<p>&#8220;We&#8217;re currently exploring whether it&#8217;s possible for RNAs to form their own complementary strand,&#8221; Boekhoven <a href=\"https:\/\/www.tum.de\/en\/news-and-events\/all-news\/press-releases\/details?tx_news_pi1%5Baction%5D=detail&amp;tx_news_pi1%5Bcontroller%5D=News&amp;tx_news_pi1%5Bnews_preview%5D=39812&amp;cHash=b609b61353bf566edfd2a4ae38788d53\">says<\/a>.<\/p>\n<p>The origin of life remains a fascinating topic of study for scientists. It involves a lot of stages, and there are multiple hypotheses for each step, including the processes that may have <a href=\"https:\/\/sciencealert.com\/scientists-just-recreated-the-chemical-reaction-that-may-have-led-to-life-on-earth\">led to the formation<\/a> of complex molecules.<\/p>\n<p>This latest research adds to what has been discovered in earlier studies, about the way RNA might have been able to replicate and add complexity <a href=\"https:\/\/sciencealert.com\/scientists-have-designed-their-own-evolving-rna-soup-for-the-first-time\">on its own<\/a>, and the role that DNA <a href=\"https:\/\/sciencealert.com\/building-blocks-of-rna-and-dna-might-have-appeared-together-before-life-began-on-earth\">might have played<\/a> too.<\/p>\n<p>It&#8217;s another reminder of the power and potential of modern-day scientific methods, through which we can approximately simulate conditions from billions of years ago \u2013 and speed up the processes that would&#8217;ve been happening then.<\/p>\n<p>&#8220;We didn&#8217;t have millions of years available and wanted an answer quickly,&#8221; <a href=\"https:\/\/www.tum.de\/en\/news-and-events\/all-news\/press-releases\/details?tx_news_pi1%5Baction%5D=detail&amp;tx_news_pi1%5Bcontroller%5D=News&amp;tx_news_pi1%5Bnews_preview%5D=39812&amp;cHash=b609b61353bf566edfd2a4ae38788d53\">says<\/a> Boekhoven.<\/p>\n<p>The research has been published in <a href=\"https:\/\/www.nature.com\/articles\/s41557-024-01570-5\"><em>Nature Chemistry<\/em><\/a>.<\/p>\n<\/div>\n<p><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-3711241968723425\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-format=\"fluid\"\r\n     data-ad-layout-key=\"-fb+5w+4e-db+86\"\r\n     data-ad-client=\"ca-pub-3711241968723425\"\r\n     data-ad-slot=\"7910942971\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script><br \/>\n<br \/><div data-type=\"_mgwidget\" data-widget-id=\"1660802\">\r\n<\/div>\r\n<script>(function(w,q){w[q]=w[q]||[];w[q].push([\"_mgc.load\"])})(window,\"_mgq\");\r\n<\/script>\r\n<br \/>\n<br \/><a href=\"https:\/\/www.sciencealert.com\/scientists-discover-how-complex-molecules-may-have-stabilized-to-spark-life-on-earth\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Highly reactive complex molecules finding some sort of stability was a necessary step towards life getting started on Earth. Scientists think they&#8217;ve just discovered how these first began to stay &hellip; <a href=\"https:\/\/hotvideos24.online\/?p=113929\" class=\"more-link\">Read More<\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[8628],"tags":[],"class_list":["post-113929","post","type-post","status-publish","format-standard","hentry","category-science","entry"],"_links":{"self":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/posts\/113929","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=113929"}],"version-history":[{"count":0,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=\/wp\/v2\/posts\/113929\/revisions"}],"wp:attachment":[{"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=113929"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=113929"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hotvideos24.online\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=113929"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}