{"id":303500,"date":"2024-07-05T18:26:18","date_gmt":"2024-07-05T12:56:18","guid":{"rendered":"https:\/\/forumias.com\/blog\/?p=303500"},"modified":"2024-07-05T18:26:18","modified_gmt":"2024-07-05T12:56:18","slug":"junk-dna","status":"publish","type":"post","link":"https:\/\/forumias.com\/blog\/junk-dna\/","title":{"rendered":"Junk DNA"},"content":{"rendered":"

Source-This post on Junk DNA<\/strong> has been created based on the article “New class of cancer mutations discovered in so-called ‘junk’ DNA”<\/a> published in \u201cMedical Press\u201d on 3 July 2024.<\/p>\n

Why in the news?<\/h2>\n

Researchers using artificial intelligence have discovered potential cancer drivers<\/span> hidden within so-called ‘junk’ regions of DNA.<\/p>\n

About Junk DNA<\/h2>\n
\"Finding
Source: National Institutes of Health (NIH)<\/figcaption><\/figure>\n

1. In genetics, junk DNA refers to regions of DNA that are noncoding<\/span>. While DNA contains instructions (coding) for creating proteins in cells, not all genetic sequences within a DNA molecule code for proteins.<\/p>\n

2.\u00a0 DNA can be a coding DNA<\/span> which uses instructions to create proteins and noncoding DNA which are sequences that do not code for proteins.<\/p>\n

3. Types of Noncoding DNA:<\/strong> Some noncoding DNA is used to produce non-coding RNA components<\/span>, such as Transfer RNA (tRNA), regulatory RNA and ribosomal RNA (rRNA).<\/p>\n

4. Junk DNA:<\/strong> Other regions of noncoding DNA are not transcribed into proteins or used to produce RNA molecules, and their function is unknown. These are referred to as junk regions of DNA.<\/p>\n

5. Proportion of Coding vs. Noncoding DNA:<\/strong> The proportion of coding versus noncoding DNA varies significantly between species:<\/p>\n

i) Humans have about 98% of the DNA is noncoding.<\/p>\n

ii) Bacteria have only about 2% of the genetic material is noncoding.<\/p>\n

6. Functional Activity in Junk DNA:<\/strong> Despite being labeled as junk, researchers have found evidence suggesting that junk DNA may have some functional activity. For instance, fragments of what were originally non-functional DNA might have acquired a function through a process called exaptation<\/span>.<\/p>\n

Note:\u00a0<\/strong>Exaptation refers to the acquisition of a function through means other than natural selection, indicating that these noncoding regions might have roles that are not yet fully understood.<\/p>\n

UPSC Syllabus: Science and technology<\/strong><\/p>\n","protected":false},"excerpt":{"rendered":"

Source-This post on Junk DNA has been created based on the article “New class of cancer mutations discovered in so-called ‘junk’ DNA” published in \u201cMedical Press\u201d on 3 July 2024. Why in the news? Researchers using artificial intelligence have discovered potential cancer drivers hidden within so-called ‘junk’ regions of DNA. About Junk DNA 1. In… Continue reading Junk DNA<\/span><\/a><\/p>\n","protected":false},"author":10366,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"footnotes":""},"categories":[1566,1738],"tags":[11872,11998],"class_list":["post-303500","post","type-post","status-publish","format-standard","hentry","category-daily-factly-articles","category-science-and-technology-daily-factly-articles","tag-9pm-daily-factly","tag-medical-press","entry"],"jetpack_featured_media_url":"","views":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/303500","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/users\/10366"}],"replies":[{"embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/comments?post=303500"}],"version-history":[{"count":0,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/posts\/303500\/revisions"}],"wp:attachment":[{"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/media?parent=303500"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/categories?post=303500"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/forumias.com\/blog\/wp-json\/wp\/v2\/tags?post=303500"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}