{"id":29269,"date":"2025-01-08T12:11:31","date_gmt":"2025-01-08T06:41:31","guid":{"rendered":"https:\/\/vajiramandravi.com\/current-affairs\/?p=29269"},"modified":"2025-04-09T01:48:07","modified_gmt":"2025-04-08T20:18:07","slug":"twigstats","status":"publish","type":"post","link":"https:\/\/vajiramandravi.com\/current-affairs\/twigstats\/","title":{"rendered":"Twigstats"},"content":{"rendered":"<h2><strong>About Twigstats:\u00a0<\/strong><\/h2>\n<ul>\n<li>It is a <strong>time-stratified ancestry analysis tool<\/strong> that boosts the statistical power of existing methods by a magnitude and reduces statistical errors.<\/li>\n<li>It has determined more precisely than ever individual-level ancestry at a very high resolution.<\/li>\n<li>It is <strong>coded in C++<\/strong> and employs the <strong>statistical language R<\/strong>.<\/li>\n<li>Twigstats allows researchers to focus on a specific period in history with more fine-grained analysis than previously possible.\u00a0<\/li>\n<\/ul>\n<p><strong>Techniques used for Genetic analysis<\/strong><\/p>\n<ul>\n<li><strong>Single Nucleotide Polymorphisms<\/strong> (SNPs): This method has been extensively used to reconstruct genetic histories and ancestry models using <strong>ancient genetic material (aDNA).<\/strong>\n<ul>\n<li>The analysis of SNPs is a powerful technique when the task is to understand populations, but it\u2019s restricted by the <strong>need for high quality DNA samples<\/strong> and its inability to resolve the histories of groups with closely related ancestors.<\/li>\n<\/ul>\n<\/li>\n<li><strong>Haplotypes Method:<\/strong> This method captures information from haplotype-sharing or <strong>identity-by-descent<\/strong> and a rare variant simultaneously includes time-resolved information about genetic ancestry, and provides comprehensive insights into how individuals \u2018share\u2019 their ancestors.<\/li>\n<li><strong>Genealogical tree inference method: <\/strong>Researchers have applied this to modern and ancient genomes to understand their population structure, demographics, locations of ancestors, etc.<\/li>\n<\/ul>\n<hr \/>\n<h3>Q1: What is Deoxyribonucleic Acid (DNA)?<\/h3>\n<p>It is the molecule that carries the genetic information for an organism&#8217;s development and function. DNA is made up of two linked strands that wind around each other to form a twisted ladder shape known as a double helix. The majority of DNA is found in the cell nucleus (referred to as nuclear DNA), but a small amount can also be found in the mitochondria.<\/p>\n<p><strong>Source: <\/strong><a href=\"https:\/\/www.thehindu.com\/sci-tech\/science\/twigstats-new-tool-reveals-hi-res-genetic-view-of-peoples-ancestors\/article69053627.ece\" target=\"_blank\" rel=\"nofollow noopener\">TH<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Twigstats is a time-stratified ancestry analysis tool that boosts the statistical power of existing methods by a magnitude and reduces statistical errors.  <\/p>\n","protected":false},"author":5,"featured_media":29270,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-29269","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-upsc-prelims-current-affairs","8":"no-featured-image-padding"},"acf":[],"_links":{"self":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/29269","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/users\/5"}],"replies":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/comments?post=29269"}],"version-history":[{"count":0,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/posts\/29269\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media\/29270"}],"wp:attachment":[{"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/media?parent=29269"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/categories?post=29269"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vajiramandravi.com\/current-affairs\/wp-json\/wp\/v2\/tags?post=29269"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}