{"id":85195,"date":"2025-06-01T03:07:26","date_gmt":"2025-06-01T03:07:26","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=85195"},"modified":"2025-06-01T03:07:26","modified_gmt":"2025-06-01T03:07:26","slug":"which-of-the-following-statements-about-fission-is-correct-1-it","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-about-fission-is-correct-1-it\/","title":{"rendered":"Which of the following statements about &#8216;fission&#8217; is correct ?\n  1. It"},"content":{"rendered":"<p>Which of the following statements about &#8216;fission&#8217; is correct ?<\/p>\n<ul>\n<li>1. It is related with the creation of new individuals by means of cell division in unicellular organism.<\/li>\n<li>2. It is related with the transformation of heavier nuclei into smaller nuclei.<\/li>\n<li>3. It is related with the creation of a heavier nuclei by means of combining two higher nuclei.<\/li>\n<\/ul>\n<p>Select the correct answer using the code given below :<\/p>\n<p>[amp_mcq option1=&#8221;1 only&#8221; option2=&#8221;2 only&#8221; option3=&#8221;1 and 2 only&#8221; option4=&#8221;1 and 3 only&#8221; correct=&#8221;option3&#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 CDS-1 &#8211; 2021<\/div>\n<\/div>\n<div class=\"pyq-exam-psc-buttons\"><a href=\"\/pyq\/pyq-upsc-cds-1-2021.pdf\" target=\"_blank\" class=\"psc-pdf-button\" rel=\"noopener\">Download PDF<\/a><a href=\"\/pyq-upsc-cds-1-2021\" target=\"_blank\" class=\"psc-attempt-button\" rel=\"noopener\">Attempt Online<\/a><\/div>\n<\/div>\n<section id=\"pyq-correct-answer\">\nStatement 1 is correct as fission in biology refers to cell division for reproduction in unicellular organisms like bacteria and amoeba, resulting in the creation of new individuals. Statement 2 is correct as nuclear fission is a process in nuclear physics where a heavy atomic nucleus splits into smaller, lighter nuclei, often releasing energy. Statement 3 describes nuclear fusion, where lighter nuclei combine to form a heavier nucleus, which is the opposite of nuclear fission. Therefore, statements 1 and 2 correctly describe different types of &#8216;fission&#8217;.<br \/>\n<\/section>\n<section id=\"pyq-key-points\">\nFission refers to splitting or division, occurring in both biological (cell division) and nuclear (heavy nucleus splitting) contexts. Fusion is the combining of nuclei.<br \/>\n<\/section>\n<section id=\"pyq-additional-information\">\nBinary fission is the most common form of reproduction in prokaryotes. Nuclear fission is used in nuclear power plants and atomic bombs. Nuclear fusion occurs naturally in stars.<br \/>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Which of the following statements about &#8216;fission&#8217; is correct ? 1. It is related with the creation of new individuals by means of cell division in unicellular organism. 2. It is related with the transformation of heavier nuclei into smaller nuclei. 3. It is related with the creation of a heavier nuclei by means of &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Which of the following statements about &#8216;fission&#8217; is correct ?\n  1. It\" class=\"read-more button\" href=\"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-about-fission-is-correct-1-it\/#more-85195\">Detailed Solution<span class=\"screen-reader-text\">Which of the following statements about &#8216;fission&#8217; is correct ?<br \/>\n  1. It<\/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":[1087],"tags":[1110,1203,1128],"class_list":["post-85195","post","type-post","status-publish","format-standard","hentry","category-upsc-cds-1","tag-1110","tag-nuclear-physics","tag-physics","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>Which of the following statements about &#039;fission&#039; is correct ?  1. It<\/title>\n<meta name=\"description\" content=\"Statement 1 is correct as fission in biology refers to cell division for reproduction in unicellular organisms like bacteria and amoeba, resulting in the creation of new individuals. Statement 2 is correct as nuclear fission is a process in nuclear physics where a heavy atomic nucleus splits into smaller, lighter nuclei, often releasing energy. Statement 3 describes nuclear fusion, where lighter nuclei combine to form a heavier nucleus, which is the opposite of nuclear fission. Therefore, statements 1 and 2 correctly describe different types of &#039;fission&#039;. Fission refers to splitting or division, occurring in both biological (cell division) and nuclear (heavy nucleus splitting) contexts. Fusion is the combining of nuclei.\" \/>\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\/which-of-the-following-statements-about-fission-is-correct-1-it\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which of the following statements about &#039;fission&#039; is correct ?  1. It\" \/>\n<meta property=\"og:description\" content=\"Statement 1 is correct as fission in biology refers to cell division for reproduction in unicellular organisms like bacteria and amoeba, resulting in the creation of new individuals. Statement 2 is correct as nuclear fission is a process in nuclear physics where a heavy atomic nucleus splits into smaller, lighter nuclei, often releasing energy. Statement 3 describes nuclear fusion, where lighter nuclei combine to form a heavier nucleus, which is the opposite of nuclear fission. Therefore, statements 1 and 2 correctly describe different types of &#039;fission&#039;. Fission refers to splitting or division, occurring in both biological (cell division) and nuclear (heavy nucleus splitting) contexts. Fusion is the combining of nuclei.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-about-fission-is-correct-1-it\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T03:07:26+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":"Which of the following statements about 'fission' is correct ?  1. It","description":"Statement 1 is correct as fission in biology refers to cell division for reproduction in unicellular organisms like bacteria and amoeba, resulting in the creation of new individuals. Statement 2 is correct as nuclear fission is a process in nuclear physics where a heavy atomic nucleus splits into smaller, lighter nuclei, often releasing energy. Statement 3 describes nuclear fusion, where lighter nuclei combine to form a heavier nucleus, which is the opposite of nuclear fission. Therefore, statements 1 and 2 correctly describe different types of 'fission'. Fission refers to splitting or division, occurring in both biological (cell division) and nuclear (heavy nucleus splitting) contexts. Fusion is the combining of nuclei.","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\/which-of-the-following-statements-about-fission-is-correct-1-it\/","og_locale":"en_US","og_type":"article","og_title":"Which of the following statements about 'fission' is correct ?  1. It","og_description":"Statement 1 is correct as fission in biology refers to cell division for reproduction in unicellular organisms like bacteria and amoeba, resulting in the creation of new individuals. Statement 2 is correct as nuclear fission is a process in nuclear physics where a heavy atomic nucleus splits into smaller, lighter nuclei, often releasing energy. Statement 3 describes nuclear fusion, where lighter nuclei combine to form a heavier nucleus, which is the opposite of nuclear fission. Therefore, statements 1 and 2 correctly describe different types of 'fission'. Fission refers to splitting or division, occurring in both biological (cell division) and nuclear (heavy nucleus splitting) contexts. Fusion is the combining of nuclei.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-about-fission-is-correct-1-it\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T03:07:26+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\/which-of-the-following-statements-about-fission-is-correct-1-it\/","url":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-about-fission-is-correct-1-it\/","name":"Which of the following statements about 'fission' is correct ? 1. It","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T03:07:26+00:00","dateModified":"2025-06-01T03:07:26+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"Statement 1 is correct as fission in biology refers to cell division for reproduction in unicellular organisms like bacteria and amoeba, resulting in the creation of new individuals. Statement 2 is correct as nuclear fission is a process in nuclear physics where a heavy atomic nucleus splits into smaller, lighter nuclei, often releasing energy. Statement 3 describes nuclear fusion, where lighter nuclei combine to form a heavier nucleus, which is the opposite of nuclear fission. Therefore, statements 1 and 2 correctly describe different types of 'fission'. Fission refers to splitting or division, occurring in both biological (cell division) and nuclear (heavy nucleus splitting) contexts. Fusion is the combining of nuclei.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-about-fission-is-correct-1-it\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-about-fission-is-correct-1-it\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/which-of-the-following-statements-about-fission-is-correct-1-it\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"UPSC CDS-1","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/upsc-cds-1\/"},{"@type":"ListItem","position":3,"name":"Which of the following statements about &#8216;fission&#8217; is correct ? 1. 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