{"id":86409,"date":"2025-06-01T03:46:20","date_gmt":"2025-06-01T03:46:20","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=86409"},"modified":"2025-06-01T03:46:20","modified_gmt":"2025-06-01T03:46:20","slug":"chromosomes-are-composed-of-dna-and","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/chromosomes-are-composed-of-dna-and\/","title":{"rendered":"Chromosomes are composed of DNA and :"},"content":{"rendered":"<p>Chromosomes are composed of DNA and :<\/p>\n<p>[amp_mcq option1=&#8221;lipids&#8221; option2=&#8221;vitamins&#8221; option3=&#8221;proteins&#8221; option4=&#8221;carbohydrates&#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-2 &#8211; 2023<\/div>\n<\/div>\n<div class=\"pyq-exam-psc-buttons\"><a href=\"\/pyq\/pyq-upsc-cds-2-2023.pdf\" target=\"_blank\" class=\"psc-pdf-button\" rel=\"noopener\">Download PDF<\/a><a href=\"\/pyq-upsc-cds-2-2023\" target=\"_blank\" class=\"psc-attempt-button\" rel=\"noopener\">Attempt Online<\/a><\/div>\n<\/div>\n<section id=\"pyq-correct-answer\">\nChromosomes in eukaryotic cells are complex structures primarily composed of deoxyribonucleic acid (DNA) and proteins. The main proteins associated with DNA in chromosomes are a group of basic proteins called histones. DNA wraps around histones to form nucleosomes, which are further condensed into chromatin fibers that make up chromosomes.<br \/>\n<\/section>\n<section id=\"pyq-key-points\">\nThe DNA carries the genetic information, while the proteins, especially histones, play a crucial role in packaging and organizing the DNA within the limited space of the nucleus. This DNA-protein complex is known as chromatin.<br \/>\n<\/section>\n<section id=\"pyq-additional-information\">\nLipids, vitamins, and carbohydrates are essential biomolecules found in cells, but they are not the primary structural components that make up chromosomes along with DNA. The fundamental composition of chromosomes is DNA and protein (primarily histones).<br \/>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Chromosomes are composed of DNA and : [amp_mcq option1=&#8221;lipids&#8221; option2=&#8221;vitamins&#8221; option3=&#8221;proteins&#8221; option4=&#8221;carbohydrates&#8221; correct=&#8221;option3&#8243;] This question was previously asked in UPSC CDS-2 &#8211; 2023 Download PDFAttempt Online Chromosomes in eukaryotic cells are complex structures primarily composed of deoxyribonucleic acid (DNA) and proteins. The main proteins associated with DNA in chromosomes are a group of basic proteins &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Chromosomes are composed of DNA and :\" class=\"read-more button\" href=\"https:\/\/exam.pscnotes.com\/mcq\/chromosomes-are-composed-of-dna-and\/#more-86409\">Detailed Solution<span class=\"screen-reader-text\">Chromosomes are composed of DNA and :<\/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":[1088],"tags":[1105,1117,1152],"class_list":["post-86409","post","type-post","status-publish","format-standard","hentry","category-upsc-cds-2","tag-1105","tag-biology","tag-cell","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>Chromosomes are composed of DNA and :<\/title>\n<meta name=\"description\" content=\"Chromosomes in eukaryotic cells are complex structures primarily composed of deoxyribonucleic acid (DNA) and proteins. The main proteins associated with DNA in chromosomes are a group of basic proteins called histones. DNA wraps around histones to form nucleosomes, which are further condensed into chromatin fibers that make up chromosomes. The DNA carries the genetic information, while the proteins, especially histones, play a crucial role in packaging and organizing the DNA within the limited space of the nucleus. 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The DNA carries the genetic information, while the proteins, especially histones, play a crucial role in packaging and organizing the DNA within the limited space of the nucleus. 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The main proteins associated with DNA in chromosomes are a group of basic proteins called histones. DNA wraps around histones to form nucleosomes, which are further condensed into chromatin fibers that make up chromosomes. The DNA carries the genetic information, while the proteins, especially histones, play a crucial role in packaging and organizing the DNA within the limited space of the nucleus. This DNA-protein complex is known as chromatin.","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\/chromosomes-are-composed-of-dna-and\/","og_locale":"en_US","og_type":"article","og_title":"Chromosomes are composed of DNA and :","og_description":"Chromosomes in eukaryotic cells are complex structures primarily composed of deoxyribonucleic acid (DNA) and proteins. The main proteins associated with DNA in chromosomes are a group of basic proteins called histones. DNA wraps around histones to form nucleosomes, which are further condensed into chromatin fibers that make up chromosomes. The DNA carries the genetic information, while the proteins, especially histones, play a crucial role in packaging and organizing the DNA within the limited space of the nucleus. This DNA-protein complex is known as chromatin.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/chromosomes-are-composed-of-dna-and\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T03:46:20+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\/chromosomes-are-composed-of-dna-and\/","url":"https:\/\/exam.pscnotes.com\/mcq\/chromosomes-are-composed-of-dna-and\/","name":"Chromosomes are composed of DNA and :","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T03:46:20+00:00","dateModified":"2025-06-01T03:46:20+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"Chromosomes in eukaryotic cells are complex structures primarily composed of deoxyribonucleic acid (DNA) and proteins. The main proteins associated with DNA in chromosomes are a group of basic proteins called histones. DNA wraps around histones to form nucleosomes, which are further condensed into chromatin fibers that make up chromosomes. The DNA carries the genetic information, while the proteins, especially histones, play a crucial role in packaging and organizing the DNA within the limited space of the nucleus. 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