{"id":91927,"date":"2025-06-01T11:09:23","date_gmt":"2025-06-01T11:09:23","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=91927"},"modified":"2025-06-01T11:09:23","modified_gmt":"2025-06-01T11:09:23","slug":"consider-the-following-statements-dna-barcoding-can-be-a-tool-to","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-statements-dna-barcoding-can-be-a-tool-to\/","title":{"rendered":"Consider the following statements :\nDNA Barcoding can be a tool to :"},"content":{"rendered":"<p>Consider the following statements :<br \/>\nDNA Barcoding can be a tool to :<\/p>\n<ul>\n<li>assess the age of a plant or animal<\/li>\n<li>distinguish among species that look alike.<\/li>\n<li>identify undesirable animal or plant materials in processed foods.<\/li>\n<\/ul>\n<p>Which of the statements given above is\/are correct ?<\/p>\n<p>[amp_mcq option1=&#8221;1 only&#8221; option2=&#8221;3 only&#8221; option3=&#8221;1 and 2&#8243; option4=&#8221;2 and 3&#8243; correct=&#8221;option4&#8243;]<\/p>\n<div class=\"psc-box-pyq-exam-year-detail\">\n<div class=\"pyq-exam\">\n<div class=\"psc-heading\">This question was previously asked in<\/div>\n<div class=\"psc-title line-ellipsis\">UPSC IAS &#8211; 2022<\/div>\n<\/div>\n<div class=\"pyq-exam-psc-buttons\"><a href=\"\/pyq\/pyq-upsc-ias-2022.pdf\" target=\"_blank\" class=\"psc-pdf-button\" rel=\"noopener\">Download PDF<\/a><a href=\"\/pyq-upsc-ias-2022\" target=\"_blank\" class=\"psc-attempt-button\" rel=\"noopener\">Attempt Online<\/a><\/div>\n<\/div>\n<section id=\"pyq-correct-answer\">\nThe correct answer is D) 2 and 3.<br \/>\n<\/section>\n<section id=\"pyq-key-points\">\nStatement 1 is incorrect. DNA barcoding is a method for identifying species using a short, standardized sequence of DNA. It provides a &#8220;barcode&#8221; that is unique to a species, but it does not provide information about the age of an individual plant or animal.<br \/>\nStatement 2 is correct. DNA barcoding is highly effective at distinguishing among species, even those that are morphologically similar or difficult to identify using traditional methods. The barcode sequence provides a clear genetic signature for differentiation.<br \/>\nStatement 3 is correct. DNA barcoding can be used to identify the species composition of biological materials in processed foods, allowing detection of adulteration, mislabeling, or the presence of undesirable or allergenic plant or animal materials.<br \/>\n<\/section>\n<section id=\"pyq-additional-information\">\nThe standard barcode region used for animals is a segment of the mitochondrial gene cytochrome c oxidase subunit I (COI). For plants, different regions are used, such as rbcL and matK in chloroplast DNA. DNA barcoding has applications in biodiversity studies, food safety, forensic science, and wildlife trafficking detection.<br \/>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Consider the following statements : DNA Barcoding can be a tool to : assess the age of a plant or animal distinguish among species that look alike. identify undesirable animal or plant materials in processed foods. Which of the statements given above is\/are correct ? [amp_mcq option1=&#8221;1 only&#8221; option2=&#8221;3 only&#8221; option3=&#8221;1 and 2&#8243; option4=&#8221;2 and &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Consider the following statements :\nDNA Barcoding can be a tool to :\" class=\"read-more button\" href=\"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-statements-dna-barcoding-can-be-a-tool-to\/#more-91927\">Detailed Solution<span class=\"screen-reader-text\">Consider the following statements :<br \/>\nDNA Barcoding can be a tool to :<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1092],"tags":[1108,1117,1243],"class_list":["post-91927","post","type-post","status-publish","format-standard","hentry","category-upsc-ias","tag-1108","tag-biology","tag-taxonomy","no-featured-image-padding"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v22.2 (Yoast SEO v23.3) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Consider the following statements : DNA Barcoding can be a tool to :<\/title>\n<meta name=\"description\" content=\"The correct answer is D) 2 and 3. Statement 1 is incorrect. DNA barcoding is a method for identifying species using a short, standardized sequence of DNA. It provides a &quot;barcode&quot; that is unique to a species, but it does not provide information about the age of an individual plant or animal. Statement 2 is correct. DNA barcoding is highly effective at distinguishing among species, even those that are morphologically similar or difficult to identify using traditional methods. The barcode sequence provides a clear genetic signature for differentiation. Statement 3 is correct. DNA barcoding can be used to identify the species composition of biological materials in processed foods, allowing detection of adulteration, mislabeling, or the presence of undesirable or allergenic plant or animal materials.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-statements-dna-barcoding-can-be-a-tool-to\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Consider the following statements : DNA Barcoding can be a tool to :\" \/>\n<meta property=\"og:description\" content=\"The correct answer is D) 2 and 3. Statement 1 is incorrect. DNA barcoding is a method for identifying species using a short, standardized sequence of DNA. It provides a &quot;barcode&quot; that is unique to a species, but it does not provide information about the age of an individual plant or animal. Statement 2 is correct. DNA barcoding is highly effective at distinguishing among species, even those that are morphologically similar or difficult to identify using traditional methods. The barcode sequence provides a clear genetic signature for differentiation. Statement 3 is correct. DNA barcoding can be used to identify the species composition of biological materials in processed foods, allowing detection of adulteration, mislabeling, or the presence of undesirable or allergenic plant or animal materials.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-statements-dna-barcoding-can-be-a-tool-to\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T11:09:23+00:00\" \/>\n<meta name=\"author\" content=\"rawan239\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rawan239\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<!-- \/ Yoast SEO Premium plugin. -->","yoast_head_json":{"title":"Consider the following statements : DNA Barcoding can be a tool to :","description":"The correct answer is D) 2 and 3. Statement 1 is incorrect. DNA barcoding is a method for identifying species using a short, standardized sequence of DNA. It provides a \"barcode\" that is unique to a species, but it does not provide information about the age of an individual plant or animal. Statement 2 is correct. DNA barcoding is highly effective at distinguishing among species, even those that are morphologically similar or difficult to identify using traditional methods. The barcode sequence provides a clear genetic signature for differentiation. Statement 3 is correct. DNA barcoding can be used to identify the species composition of biological materials in processed foods, allowing detection of adulteration, mislabeling, or the presence of undesirable or allergenic plant or animal materials.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-statements-dna-barcoding-can-be-a-tool-to\/","og_locale":"en_US","og_type":"article","og_title":"Consider the following statements : DNA Barcoding can be a tool to :","og_description":"The correct answer is D) 2 and 3. Statement 1 is incorrect. DNA barcoding is a method for identifying species using a short, standardized sequence of DNA. It provides a \"barcode\" that is unique to a species, but it does not provide information about the age of an individual plant or animal. Statement 2 is correct. DNA barcoding is highly effective at distinguishing among species, even those that are morphologically similar or difficult to identify using traditional methods. The barcode sequence provides a clear genetic signature for differentiation. Statement 3 is correct. DNA barcoding can be used to identify the species composition of biological materials in processed foods, allowing detection of adulteration, mislabeling, or the presence of undesirable or allergenic plant or animal materials.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-statements-dna-barcoding-can-be-a-tool-to\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T11:09:23+00:00","author":"rawan239","twitter_card":"summary_large_image","twitter_misc":{"Written by":"rawan239","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-statements-dna-barcoding-can-be-a-tool-to\/","url":"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-statements-dna-barcoding-can-be-a-tool-to\/","name":"Consider the following statements : DNA Barcoding can be a tool to :","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T11:09:23+00:00","dateModified":"2025-06-01T11:09:23+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"The correct answer is D) 2 and 3. Statement 1 is incorrect. DNA barcoding is a method for identifying species using a short, standardized sequence of DNA. It provides a \"barcode\" that is unique to a species, but it does not provide information about the age of an individual plant or animal. Statement 2 is correct. DNA barcoding is highly effective at distinguishing among species, even those that are morphologically similar or difficult to identify using traditional methods. The barcode sequence provides a clear genetic signature for differentiation. Statement 3 is correct. DNA barcoding can be used to identify the species composition of biological materials in processed foods, allowing detection of adulteration, mislabeling, or the presence of undesirable or allergenic plant or animal materials.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-statements-dna-barcoding-can-be-a-tool-to\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-statements-dna-barcoding-can-be-a-tool-to\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/consider-the-following-statements-dna-barcoding-can-be-a-tool-to\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"UPSC IAS","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/upsc-ias\/"},{"@type":"ListItem","position":3,"name":"Consider the following statements : DNA Barcoding can be a tool to :"}]},{"@type":"WebSite","@id":"https:\/\/exam.pscnotes.com\/mcq\/#website","url":"https:\/\/exam.pscnotes.com\/mcq\/","name":"MCQ and Quiz for Exams","description":"","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/exam.pscnotes.com\/mcq\/?s={search_term_string}"},"query-input":"required name=search_term_string"}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209","name":"rawan239","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/image\/","url":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/761a7274f9cce048fa5b921221e7934820d74514df93ef195a9d22af0c1c9001?s=96&d=mm&r=g","caption":"rawan239"},"sameAs":["https:\/\/exam.pscnotes.com"],"url":"https:\/\/exam.pscnotes.com\/mcq\/author\/rawan239\/"}]}},"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/91927","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/comments?post=91927"}],"version-history":[{"count":0,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/91927\/revisions"}],"wp:attachment":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/media?parent=91927"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/categories?post=91927"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/tags?post=91927"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}