{"id":85831,"date":"2025-06-01T03:29:00","date_gmt":"2025-06-01T03:29:00","guid":{"rendered":"https:\/\/exam.pscnotes.com\/mcq\/?p=85831"},"modified":"2025-06-01T03:29:00","modified_gmt":"2025-06-01T03:29:00","slug":"which-one-of-the-following-features-is-an-indication-for-modification","status":"publish","type":"post","link":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-features-is-an-indication-for-modification\/","title":{"rendered":"Which one of the following features is an indication for modification"},"content":{"rendered":"<p>Which one of the following features is an indication for modification of stem of a plant?<\/p>\n<p>[amp_mcq option1=&#8221;Presence of &#8216;eye&#8217; on potato&#8221; option2=&#8221;&#8216;Scale&#8217; found in onion&#8221; option3=&#8221;&#8216;Tendril&#8217; found in pea&#8221; option4=&#8221;&#8216;Hair&#8217; present in carrot&#8221; correct=&#8221;option1&#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; 2018<\/div>\n<\/div>\n<div class=\"pyq-exam-psc-buttons\"><a href=\"\/pyq\/pyq-upsc-cds-2-2018.pdf\" target=\"_blank\" class=\"psc-pdf-button\" rel=\"noopener\">Download PDF<\/a><a href=\"\/pyq-upsc-cds-2-2018\" target=\"_blank\" class=\"psc-attempt-button\" rel=\"noopener\">Attempt Online<\/a><\/div>\n<\/div>\n<section id=\"pyq-correct-answer\">\nThe presence of &#8216;eye&#8217; on potato is an indication for modification of stem of a plant.<br \/>\n<\/section>\n<section id=\"pyq-key-points\">\nModifications are adaptations of plant parts for specific functions. To identify a modification, we look for features characteristic of the original plant part.<br \/>\nA) &#8216;Eye&#8217; on potato: An &#8216;eye&#8217; on a potato is an axillary bud, located at a node. The presence of nodes and internodes is a characteristic feature of stems. Potato tubers are modified underground stems used for storage and vegetative propagation.<br \/>\nB) &#8216;Scale&#8217; found in onion: Onion bulbs consist of a reduced stem base and fleshy modified leaves (scales) that store food. While the bulb includes a stem component, the &#8216;scales&#8217; themselves are modified leaves.<br \/>\nC) &#8216;Tendril&#8217; found in pea: Tendrils in peas are modified leaves or leaflets used for support.<br \/>\nD) &#8216;Hair&#8217; present in carrot: Carrots are modified taproots. Root hairs are extensions of epidermal cells of roots, not stems.<br \/>\nThus, the presence of buds (eyes) on a potato directly indicates its stem nature, even though it&#8217;s modified into a tuber.<br \/>\n<\/section>\n<section id=\"pyq-additional-information\">\nOther examples of stem modifications include rhizomes (ginger), corms (colocasia), bulbs (onion, garlic), runners\/stolons (grasses, strawberry), thorns (Bougainvillea, citrus), and cladodes (Opuntia). Root modifications include taproots for storage (carrot, radish), adventitious roots for support (banyan), and pneumatophores for respiration (mangroves).<br \/>\n<\/section>\n","protected":false},"excerpt":{"rendered":"<p>Which one of the following features is an indication for modification of stem of a plant? [amp_mcq option1=&#8221;Presence of &#8216;eye&#8217; on potato&#8221; option2=&#8221;&#8216;Scale&#8217; found in onion&#8221; option3=&#8221;&#8216;Tendril&#8217; found in pea&#8221; option4=&#8221;&#8216;Hair&#8217; present in carrot&#8221; correct=&#8221;option1&#8243;] This question was previously asked in UPSC CDS-2 &#8211; 2018 Download PDFAttempt Online The presence of &#8216;eye&#8217; on potato is &#8230; <\/p>\n<p class=\"read-more-container\"><a title=\"Which one of the following features is an indication for modification\" class=\"read-more button\" href=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-features-is-an-indication-for-modification\/#more-85831\">Detailed Solution<span class=\"screen-reader-text\">Which one of the following features is an indication for modification<\/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":[1114,1117,1118],"class_list":["post-85831","post","type-post","status-publish","format-standard","hentry","category-upsc-cds-2","tag-1114","tag-biology","tag-plant-physiology","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 one of the following features is an indication for modification<\/title>\n<meta name=\"description\" content=\"The presence of &#039;eye&#039; on potato is an indication for modification of stem of a plant. Modifications are adaptations of plant parts for specific functions. To identify a modification, we look for features characteristic of the original plant part. A) &#039;Eye&#039; on potato: An &#039;eye&#039; on a potato is an axillary bud, located at a node. The presence of nodes and internodes is a characteristic feature of stems. Potato tubers are modified underground stems used for storage and vegetative propagation. B) &#039;Scale&#039; found in onion: Onion bulbs consist of a reduced stem base and fleshy modified leaves (scales) that store food. While the bulb includes a stem component, the &#039;scales&#039; themselves are modified leaves. C) &#039;Tendril&#039; found in pea: Tendrils in peas are modified leaves or leaflets used for support. D) &#039;Hair&#039; present in carrot: Carrots are modified taproots. Root hairs are extensions of epidermal cells of roots, not stems. Thus, the presence of buds (eyes) on a potato directly indicates its stem nature, even though it&#039;s modified into a tuber.\" \/>\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-one-of-the-following-features-is-an-indication-for-modification\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Which one of the following features is an indication for modification\" \/>\n<meta property=\"og:description\" content=\"The presence of &#039;eye&#039; on potato is an indication for modification of stem of a plant. Modifications are adaptations of plant parts for specific functions. To identify a modification, we look for features characteristic of the original plant part. A) &#039;Eye&#039; on potato: An &#039;eye&#039; on a potato is an axillary bud, located at a node. The presence of nodes and internodes is a characteristic feature of stems. Potato tubers are modified underground stems used for storage and vegetative propagation. B) &#039;Scale&#039; found in onion: Onion bulbs consist of a reduced stem base and fleshy modified leaves (scales) that store food. While the bulb includes a stem component, the &#039;scales&#039; themselves are modified leaves. C) &#039;Tendril&#039; found in pea: Tendrils in peas are modified leaves or leaflets used for support. D) &#039;Hair&#039; present in carrot: Carrots are modified taproots. Root hairs are extensions of epidermal cells of roots, not stems. Thus, the presence of buds (eyes) on a potato directly indicates its stem nature, even though it&#039;s modified into a tuber.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-features-is-an-indication-for-modification\/\" \/>\n<meta property=\"og:site_name\" content=\"MCQ and Quiz for Exams\" \/>\n<meta property=\"article:published_time\" content=\"2025-06-01T03:29:00+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 one of the following features is an indication for modification","description":"The presence of 'eye' on potato is an indication for modification of stem of a plant. Modifications are adaptations of plant parts for specific functions. To identify a modification, we look for features characteristic of the original plant part. A) 'Eye' on potato: An 'eye' on a potato is an axillary bud, located at a node. The presence of nodes and internodes is a characteristic feature of stems. Potato tubers are modified underground stems used for storage and vegetative propagation. B) 'Scale' found in onion: Onion bulbs consist of a reduced stem base and fleshy modified leaves (scales) that store food. While the bulb includes a stem component, the 'scales' themselves are modified leaves. C) 'Tendril' found in pea: Tendrils in peas are modified leaves or leaflets used for support. D) 'Hair' present in carrot: Carrots are modified taproots. Root hairs are extensions of epidermal cells of roots, not stems. Thus, the presence of buds (eyes) on a potato directly indicates its stem nature, even though it's modified into a tuber.","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-one-of-the-following-features-is-an-indication-for-modification\/","og_locale":"en_US","og_type":"article","og_title":"Which one of the following features is an indication for modification","og_description":"The presence of 'eye' on potato is an indication for modification of stem of a plant. Modifications are adaptations of plant parts for specific functions. To identify a modification, we look for features characteristic of the original plant part. A) 'Eye' on potato: An 'eye' on a potato is an axillary bud, located at a node. The presence of nodes and internodes is a characteristic feature of stems. Potato tubers are modified underground stems used for storage and vegetative propagation. B) 'Scale' found in onion: Onion bulbs consist of a reduced stem base and fleshy modified leaves (scales) that store food. While the bulb includes a stem component, the 'scales' themselves are modified leaves. C) 'Tendril' found in pea: Tendrils in peas are modified leaves or leaflets used for support. D) 'Hair' present in carrot: Carrots are modified taproots. Root hairs are extensions of epidermal cells of roots, not stems. Thus, the presence of buds (eyes) on a potato directly indicates its stem nature, even though it's modified into a tuber.","og_url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-features-is-an-indication-for-modification\/","og_site_name":"MCQ and Quiz for Exams","article_published_time":"2025-06-01T03:29:00+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-one-of-the-following-features-is-an-indication-for-modification\/","url":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-features-is-an-indication-for-modification\/","name":"Which one of the following features is an indication for modification","isPartOf":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#website"},"datePublished":"2025-06-01T03:29:00+00:00","dateModified":"2025-06-01T03:29:00+00:00","author":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/#\/schema\/person\/5807dafeb27d2ec82344d6cbd6c3d209"},"description":"The presence of 'eye' on potato is an indication for modification of stem of a plant. Modifications are adaptations of plant parts for specific functions. To identify a modification, we look for features characteristic of the original plant part. A) 'Eye' on potato: An 'eye' on a potato is an axillary bud, located at a node. The presence of nodes and internodes is a characteristic feature of stems. Potato tubers are modified underground stems used for storage and vegetative propagation. B) 'Scale' found in onion: Onion bulbs consist of a reduced stem base and fleshy modified leaves (scales) that store food. While the bulb includes a stem component, the 'scales' themselves are modified leaves. C) 'Tendril' found in pea: Tendrils in peas are modified leaves or leaflets used for support. D) 'Hair' present in carrot: Carrots are modified taproots. Root hairs are extensions of epidermal cells of roots, not stems. Thus, the presence of buds (eyes) on a potato directly indicates its stem nature, even though it's modified into a tuber.","breadcrumb":{"@id":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-features-is-an-indication-for-modification\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-features-is-an-indication-for-modification\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/exam.pscnotes.com\/mcq\/which-one-of-the-following-features-is-an-indication-for-modification\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/exam.pscnotes.com\/mcq\/"},{"@type":"ListItem","position":2,"name":"UPSC CDS-2","item":"https:\/\/exam.pscnotes.com\/mcq\/category\/upsc-cds-2\/"},{"@type":"ListItem","position":3,"name":"Which one of the following features is an indication for modification"}]},{"@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\/85831","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=85831"}],"version-history":[{"count":0,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/posts\/85831\/revisions"}],"wp:attachment":[{"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/media?parent=85831"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/categories?post=85831"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/exam.pscnotes.com\/mcq\/wp-json\/wp\/v2\/tags?post=85831"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}