{"id":7098,"date":"2023-11-23T21:59:55","date_gmt":"2023-11-23T16:29:55","guid":{"rendered":"https:\/\/edunovations.com\/mcqs\/?p=7098"},"modified":"2023-11-23T22:00:08","modified_gmt":"2023-11-23T16:30:08","slug":"ncert-class-12-biology-mcq-4","status":"publish","type":"post","link":"https:\/\/edunovations.com\/mcqs\/ncert-class-12-biology-mcq-4\/","title":{"rendered":"NCERT Class 12 Biology\u00a0MCQ :\u00a0Microbes in Human Welfare"},"content":{"rendered":"\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_81 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"Toggle Table of Content\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Toggle<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewBox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewBox=\"0 0 24 24\" version=\"1.2\" baseProfile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/edunovations.com\/mcqs\/ncert-class-12-biology-mcq-4\/#NCERT_Class_12_Biology_MCQ_Microbes_in_Human_Welfare\" >NCERT Class 12 Biology&nbsp;MCQ :&nbsp;Microbes in Human Welfare<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/edunovations.com\/mcqs\/ncert-class-12-biology-mcq-4\/#NCERT_Class_12_Biology_Microbes_in_Human_Welfare_MCQ_%E2%80%93_NCERT_Class_12_MCQ\" >NCERT Class 12 Biology&nbsp;: Microbes in Human Welfare MCQ &#8211; NCERT Class 12 MCQ<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/edunovations.com\/mcqs\/ncert-class-12-biology-mcq-4\/#Some_Important_Links\" >Some Important Links<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"NCERT_Class_12_Biology_MCQ_Microbes_in_Human_Welfare\"><\/span>NCERT Class 12 <strong>Biology&nbsp;<\/strong>MCQ :&nbsp;Microbes in Human Welfare<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>Embark on a biological exploration through our MCQs page dedicated to &#8216;Microbes in Human Welfare.&#8217; Curated from a diverse array of previous year papers, including esteemed sectors such as UPSC IAS and more, this resource invites you to delve into the fascinating world of microorganisms and their indispensable role in human well-being.<\/p>\n\n\n\n<p>These Multiple Choice Questions are meticulously crafted to challenge and enhance your understanding of the diverse ways in which microbes contribute to human welfare, from agriculture and food production to environmental management and healthcare. Whether you&#8217;re a biology enthusiast or preparing for competitive exams, these questions offer a strategic approach to mastering the intricacies of this critical aspect of microbiology.<\/p>\n\n\n\n<p>Prepare confidently for exams with questions sourced from various sectors, ensuring a well-rounded grasp of the nuanced interactions between microbes and human welfare. Each MCQ serves as a key to unlocking insights into the diverse applications of microbes, mirroring the depth of knowledge required for success in competitive examinations.<\/p>\n\n\n\n<p>Immerse yourself in the microbial wonders of human welfare, confident in your ability to navigate through MCQs that mirror the intricacies of these tiny organisms&#8217; vital contributions. Our resource, drawn from previous year papers, acts as a roadmap for exam success, offering both knowledge enrichment and strategic insights.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"NCERT_Class_12_Biology_Microbes_in_Human_Welfare_MCQ_%E2%80%93_NCERT_Class_12_MCQ\"><\/span>NCERT Class 12 <strong><strong><strong>Biology&nbsp;<\/strong><\/strong><\/strong>: Microbes in Human Welfare MCQ<strong> &#8211; NCERT Class 12 MCQ<\/strong><span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n<style>\r\n    \/* Quiz container *\/\r\n    .quiz-container {\r\n        max-width: 800px;\r\n        margin: 0 auto;\r\n        padding: 20px;\r\n        box-sizing: border-box;\r\n        font-family: Arial, sans-serif;\r\n    }\r\n\r\n    \/* Question *\/\r\n    .question {\r\n        background-color: #f9f9f9;\r\n        padding: 20px;\r\n        border: 1px solid #ccc;\r\n        font-size: 20px;\r\n        margin-bottom: 20px;\r\n        border-radius: 5px;\r\n        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);\r\n        position: relative;\r\n    }\r\n\r\n    \/* Question header *\/\r\n    .question h4 {\r\n        margin-bottom: 20px;\r\n    }\r\n\r\n    \/* Options list *\/\r\n    .options {\r\n        list-style-type: none;\r\n        padding: 0;\r\n    }\r\n\r\n    \/* Option item *\/\r\n    .options li {\r\n        margin: 10px;\r\n        padding: 10px;\r\n        display: flex;\r\n        align-items: center;\r\n        border-radius: 5px;\r\n        border: 2px solid #ccc;\r\n        box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);\r\n    }\r\n\r\n    \/* Option number *\/\r\n    .options li span {\r\n        margin-right: 10px;\r\n        width: 20px;\r\n        height: 20px;\r\n        border-radius: 50%;\r\n        border: 2px solid black;\r\n        display: flex;\r\n        justify-content: center;\r\n        align-items: center;\r\n        font-weight: bold;\r\n    }\r\n\r\n    \/* Option colors *\/\r\n    .options li span.option-a {\r\n        background-color: #FFD700; \/* Yellow *\/\r\n    }\r\n\r\n    .options li span.option-b {\r\n        background-color: #FF1493; \/* Pink *\/\r\n    }\r\n\r\n    .options li span.option-c {\r\n        background-color: #00BFFF; \/* Light Blue *\/\r\n    }\r\n\r\n    .options li span.option-d {\r\n        background-color: #7CFC00; \/* Green-Yellow *\/\r\n    }\r\n\r\n    .options li span.option-e {\r\n        background-color: #EE82EE; \/* Purple-Pink *\/\r\n    }\r\n\r\n    \/* Show answer button *\/\r\n    .show-answer {\r\n        background-color: #0066CC;\r\n        color: #fff;\r\n        border: none;\r\n        padding: 8px 20px;\r\n        font-size: 20px;\r\n        cursor: pointer;\r\n        border-radius: 3px;\r\n        text-align: center;\r\n        display: inline-block;\r\n        margin-bottom: 20px;\r\n    }\r\n\r\n    \/* Answer box *\/\r\n    .answer-box {\r\n        margin: 0 auto;\r\n        padding: 10px;\r\n        font-size: 20px;\r\n        color: #61970F;\r\n        box-sizing: border-box;\r\n        display: none;\r\n    }\r\n\r\n    \/* Question header *\/\r\n    .quiz-container .question-header {\r\n        color: darkblue;\r\n        font-weight: bold;\r\n        margin-right: 10px;\r\n    }\r\n\r\n    \/* Question header and text *\/\r\n    .quiz-container .question-header,\r\n    .quiz-container .question-text {\r\n        display: inline;\r\n        font-weight: bold;\r\n    }\r\n\r\n    \/* Responsive styles *\/\r\n    @media (max-width: 767px) {\r\n        .quiz-container {\r\n            padding: 10px;\r\n        }\r\n    }\r\n<\/style>\r\n<div class=\"quiz-container\">\r\n      <div class=\"question\">\r\n      <span class=\"question-header\">Question:<\/span>\r\n      <div class=\"question-text\">Bacillus thuringiensis (Bt) strains have been used for designing novel:\r\n<\/div>\r\n      <ul class=\"options\">\r\n        <li><span class=\"option-a\">A<\/span><label for=\"optA_89581\">Bio-metallurigcal techniques<\/label><\/li>\r\n        <li><span class=\"option-b\">B<\/span><label for=\"optB_89581\">Bio-mineralization process<\/label><\/li>\r\n        <li><span class=\"option-c\">C<\/span><label for=\"optC_89581\">Bio-insecticidal plants<\/label><\/li>\r\n        <li><span class=\"option-d\">D<\/span><label for=\"optD_89581\">Bio-fertilizer<\/label><\/li>\r\n              <\/ul>\r\n      <div class=\"answer-box\"><\/div>\r\n      <button class=\"show-answer\" data-answer=\"c\">Show Answer<\/button>\r\n    <\/div>\r\n      <div class=\"question\">\r\n      <span class=\"question-header\">Question:<\/span>\r\n      <div class=\"question-text\">Streptococcus is used in the preparation<\/div>\r\n      <ul class=\"options\">\r\n        <li><span class=\"option-a\">A<\/span><label for=\"optA_89583\">Wine<\/label><\/li>\r\n        <li><span class=\"option-b\">B<\/span><label for=\"optB_89583\">Idli<\/label><\/li>\r\n        <li><span class=\"option-c\">C<\/span><label for=\"optC_89583\">Paneer<\/label><\/li>\r\n        <li><span class=\"option-d\">D<\/span><label for=\"optD_89583\">Bread<\/label><\/li>\r\n              <\/ul>\r\n      <div class=\"answer-box\"><\/div>\r\n      <button class=\"show-answer\" data-answer=\"c\">Show Answer<\/button>\r\n    <\/div>\r\n      <div class=\"question\">\r\n      <span class=\"question-header\">Question:<\/span>\r\n      <div class=\"question-text\">Nif gene occurs in:\r\n<\/div>\r\n      <ul class=\"options\">\r\n        <li><span class=\"option-a\">A<\/span><label for=\"optA_89584\">Peiiicillium<\/label><\/li>\r\n        <li><span class=\"option-b\">B<\/span><label for=\"optB_89584\">Rhizobium<\/label><\/li>\r\n        <li><span class=\"option-c\">C<\/span><label for=\"optC_89584\">Aspergillus<\/label><\/li>\r\n        <li><span class=\"option-d\">D<\/span><label for=\"optD_89584\">Streptococcus<\/label><\/li>\r\n              <\/ul>\r\n      <div class=\"answer-box\"><\/div>\r\n      <button class=\"show-answer\" data-answer=\"b\">Show Answer<\/button>\r\n    <\/div>\r\n      <div class=\"question\">\r\n      <span class=\"question-header\">Question:<\/span>\r\n      <div class=\"question-text\">Azoila has symbiotic relationship with:<\/div>\r\n      <ul class=\"options\">\r\n        <li><span class=\"option-a\">A<\/span><label for=\"optA_89585\">Chlotfila<\/label><\/li>\r\n        <li><span class=\"option-b\">B<\/span><label for=\"optB_89585\">Anabaena<\/label><\/li>\r\n        <li><span class=\"option-c\">C<\/span><label for=\"optC_89585\">Nostoc<\/label><\/li>\r\n        <li><span class=\"option-d\">D<\/span><label for=\"optD_89585\">Tolypothrix<\/label><\/li>\r\n              <\/ul>\r\n      <div class=\"answer-box\"><\/div>\r\n      <button class=\"show-answer\" data-answer=\"b\">Show Answer<\/button>\r\n    <\/div>\r\n      <div class=\"question\">\r\n      <span class=\"question-header\">Question:<\/span>\r\n      <div class=\"question-text\">Term antibiotic was first used by<\/div>\r\n      <ul class=\"options\">\r\n        <li><span class=\"option-a\">A<\/span><label for=\"optA_89586\">Flemming<\/label><\/li>\r\n        <li><span class=\"option-b\">B<\/span><label for=\"optB_89586\">Pasteur<\/label><\/li>\r\n        <li><span class=\"option-c\">C<\/span><label for=\"optC_89586\">Waksman<\/label><\/li>\r\n        <li><span class=\"option-d\">D<\/span><label for=\"optD_89586\">Lister<\/label><\/li>\r\n              <\/ul>\r\n      <div class=\"answer-box\"><\/div>\r\n      <button class=\"show-answer\" data-answer=\"c\">Show Answer<\/button>\r\n    <\/div>\r\n      <div class=\"question\">\r\n      <span class=\"question-header\">Question:<\/span>\r\n      <div class=\"question-text\">A free living anaerobic nitrogen fixing bacterium is<\/div>\r\n      <ul class=\"options\">\r\n        <li><span class=\"option-a\">A<\/span><label for=\"optA_89588\">Rhizobium<\/label><\/li>\r\n        <li><span class=\"option-b\">B<\/span><label for=\"optB_89588\">Streptococcus<\/label><\/li>\r\n        <li><span class=\"option-c\">C<\/span><label for=\"optC_89588\">Azotobactor<\/label><\/li>\r\n        <li><span class=\"option-d\">D<\/span><label for=\"optD_89588\">Clostridium<\/label><\/li>\r\n              <\/ul>\r\n      <div class=\"answer-box\"><\/div>\r\n      <button class=\"show-answer\" data-answer=\"d\">Show Answer<\/button>\r\n    <\/div>\r\n      <div class=\"question\">\r\n      <span class=\"question-header\">Question:<\/span>\r\n      <div class=\"question-text\">Citric acid is produced by:\r\n<\/div>\r\n      <ul class=\"options\">\r\n        <li><span class=\"option-a\">A<\/span><label for=\"optA_89589\">Rhizopus<\/label><\/li>\r\n        <li><span class=\"option-b\">B<\/span><label for=\"optB_89589\">Mucor<\/label><\/li>\r\n        <li><span class=\"option-c\">C<\/span><label for=\"optC_89589\">Aspergillus<\/label><\/li>\r\n        <li><span class=\"option-d\">D<\/span><label for=\"optD_89589\">Saccharomyces<\/label><\/li>\r\n              <\/ul>\r\n      <div class=\"answer-box\"><\/div>\r\n      <button class=\"show-answer\" data-answer=\"a\">Show Answer<\/button>\r\n    <\/div>\r\n      <div class=\"question\">\r\n      <span class=\"question-header\">Question:<\/span>\r\n      <div class=\"question-text\">In nostoc, enzyme nitrogenase occurs in :\r\n<\/div>\r\n      <ul class=\"options\">\r\n        <li><span class=\"option-a\">A<\/span><label for=\"optA_89590\">Vegetative cells<\/label><\/li>\r\n        <li><span class=\"option-b\">B<\/span><label for=\"optB_89590\">Heterocysts<\/label><\/li>\r\n        <li><span class=\"option-c\">C<\/span><label for=\"optC_89590\">Both (a) and (b)<\/label><\/li>\r\n        <li><span class=\"option-d\">D<\/span><label for=\"optD_89590\">Only in hormogones<\/label><\/li>\r\n              <\/ul>\r\n      <div class=\"answer-box\"><\/div>\r\n      <button class=\"show-answer\" data-answer=\"c\">Show Answer<\/button>\r\n    <\/div>\r\n      <div class=\"question\">\r\n      <span class=\"question-header\">Question:<\/span>\r\n      <div class=\"question-text\">Usnic acid is an antibiotic obtained from<\/div>\r\n      <ul class=\"options\">\r\n        <li><span class=\"option-a\">A<\/span><label for=\"optA_89591\">Fungi<\/label><\/li>\r\n        <li><span class=\"option-b\">B<\/span><label for=\"optB_89591\">Bacteria<\/label><\/li>\r\n        <li><span class=\"option-c\">C<\/span><label for=\"optC_89591\">Lichens<\/label><\/li>\r\n        <li><span class=\"option-d\">D<\/span><label for=\"optD_89591\">Algae<\/label><\/li>\r\n              <\/ul>\r\n      <div class=\"answer-box\"><\/div>\r\n      <button class=\"show-answer\" data-answer=\"c\">Show Answer<\/button>\r\n    <\/div>\r\n      <div class=\"question\">\r\n      <span class=\"question-header\">Question:<\/span>\r\n      <div class=\"question-text\">By anobacteria are useful biofertilizers in the; field of<\/div>\r\n      <ul class=\"options\">\r\n        <li><span class=\"option-a\">A<\/span><label for=\"optA_89593\">Wheat<\/label><\/li>\r\n        <li><span class=\"option-b\">B<\/span><label for=\"optB_89593\">Maize<\/label><\/li>\r\n        <li><span class=\"option-c\">C<\/span><label for=\"optC_89593\">Rice<\/label><\/li>\r\n        <li><span class=\"option-d\">D<\/span><label for=\"optD_89593\">Sugarcane<\/label><\/li>\r\n              <\/ul>\r\n      <div class=\"answer-box\"><\/div>\r\n      <button class=\"show-answer\" data-answer=\"c\">Show Answer<\/button>\r\n    <\/div>\r\n      <div class=\"question\">\r\n      <span class=\"question-header\">Question:<\/span>\r\n      <div class=\"question-text\">Streptomycin is produced by:\r\n<\/div>\r\n      <ul class=\"options\">\r\n        <li><span class=\"option-a\">A<\/span><label for=\"optA_89594\">By Streptomyces Scoleus<\/label><\/li>\r\n        <li><span class=\"option-b\">B<\/span><label for=\"optB_89594\">By Streptomyces fradiae<\/label><\/li>\r\n        <li><span class=\"option-c\">C<\/span><label for=\"optC_89594\">By Streptomyces venezueleae<\/label><\/li>\r\n        <li><span class=\"option-d\">D<\/span><label for=\"optD_89594\">By Streptomyces griseus<\/label><\/li>\r\n              <\/ul>\r\n      <div class=\"answer-box\"><\/div>\r\n      <button class=\"show-answer\" data-answer=\"d\">Show Answer<\/button>\r\n    <\/div>\r\n      <div class=\"question\">\r\n      <span class=\"question-header\">Question:<\/span>\r\n      <div class=\"question-text\">Antibiotics are:<\/div>\r\n      <ul class=\"options\">\r\n        <li><span class=\"option-a\">A<\/span><label for=\"optA_89595\">Medicines<\/label><\/li>\r\n        <li><span class=\"option-b\">B<\/span><label for=\"optB_89595\">Toxin<\/label><\/li>\r\n        <li><span class=\"option-c\">C<\/span><label for=\"optC_89595\">Plants<\/label><\/li>\r\n        <li><span class=\"option-d\">D<\/span><label for=\"optD_89595\">Syrups<\/label><\/li>\r\n              <\/ul>\r\n      <div class=\"answer-box\"><\/div>\r\n      <button class=\"show-answer\" data-answer=\"a\">Show Answer<\/button>\r\n    <\/div>\r\n      <div class=\"question\">\r\n      <span class=\"question-header\">Question:<\/span>\r\n      <div class=\"question-text\">A free-living aerobic and non-photosynthetic nitrogen fixing bacterium is:\r\n<\/div>\r\n      <ul class=\"options\">\r\n        <li><span class=\"option-a\">A<\/span><label for=\"optA_89597\">Anabaena<\/label><\/li>\r\n        <li><span class=\"option-b\">B<\/span><label for=\"optB_89597\">Clostridium<\/label><\/li>\r\n        <li><span class=\"option-c\">C<\/span><label for=\"optC_89597\">Azotobactor<\/label><\/li>\r\n        <li><span class=\"option-d\">D<\/span><label for=\"optD_89597\">Rhizobium<\/label><\/li>\r\n              <\/ul>\r\n      <div class=\"answer-box\"><\/div>\r\n      <button class=\"show-answer\" data-answer=\"c\">Show Answer<\/button>\r\n    <\/div>\r\n      <div class=\"question\">\r\n      <span class=\"question-header\">Question:<\/span>\r\n      <div class=\"question-text\">For retting of jute, the fermenting microbe is:\r\n<\/div>\r\n      <ul class=\"options\">\r\n        <li><span class=\"option-a\">A<\/span><label for=\"optA_89598\">Methanophilic bacteria<\/label><\/li>\r\n        <li><span class=\"option-b\">B<\/span><label for=\"optB_89598\">Butyric acid bacteria<\/label><\/li>\r\n        <li><span class=\"option-c\">C<\/span><label for=\"optC_89598\">Helicobactor pylon<\/label><\/li>\r\n        <li><span class=\"option-d\">D<\/span><label for=\"optD_89598\">Streptococcus lactin<\/label><\/li>\r\n              <\/ul>\r\n      <div class=\"answer-box\"><\/div>\r\n      <button class=\"show-answer\" data-answer=\"b\">Show Answer<\/button>\r\n    <\/div>\r\n  <\/div>\r\n<script src=\"https:\/\/code.jquery.com\/jquery-3.6.0.min.js\"><\/script>\r\n<script>\r\n$(document).ready(function() {\r\n  $('.show-answer').click(function() {\r\n    var answer = $(this).data('answer');\r\n    $(this).siblings('.answer-box').html('The correct answer is: ' + answer).slideDown();\r\n    $(this).hide();\r\n  });\r\n});\r\n<\/script>\n\n\n\n<p><\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Some_Important_Links\"><\/span>Some Important Links <span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-outline is-style-outline--1\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/edunovations.com\/mcqs\/category\/ncert\/class-1\/\" target=\"_blank\" rel=\"noreferrer noopener\">NCERT CLASS 1 MCQ<\/a><\/div>\n\n\n\n<div class=\"wp-block-button is-style-outline is-style-outline--2\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/edunovations.com\/mcqs\/category\/ncert\/class-2\/\" target=\"_blank\" rel=\"noreferrer noopener\">NCERT CLASS 2 MCQ<\/a><\/div>\n\n\n\n<div class=\"wp-block-button is-style-outline is-style-outline--3\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/edunovations.com\/mcqs\/category\/ncert\/class-3\/\" target=\"_blank\" rel=\"noreferrer noopener\">NCERT CLASS 3 MCQ<\/a><\/div>\n\n\n\n<div class=\"wp-block-button is-style-outline is-style-outline--4\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/edunovations.com\/mcqs\/category\/ncert\/class-4\/\">NCERT CLASS 4 MCQ<\/a><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-outline is-style-outline--5\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/edunovations.com\/mcqs\/category\/ncert\/class-5\/\" target=\"_blank\" rel=\"noreferrer noopener\">NCERT CLASS 5 MCQ<\/a><\/div>\n\n\n\n<div class=\"wp-block-button is-style-outline is-style-outline--6\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/edunovations.com\/mcqs\/category\/ncert\/class-6\/\" target=\"_blank\" rel=\"noreferrer noopener\">NCERT CLASS 6 MCQ<\/a><\/div>\n\n\n\n<div class=\"wp-block-button is-style-outline is-style-outline--7\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/edunovations.com\/mcqs\/category\/ncert\/class-7\/\" target=\"_blank\" rel=\"noreferrer noopener\">NCERT CLASS 7 MCQ<\/a><\/div>\n\n\n\n<div class=\"wp-block-button is-style-outline is-style-outline--8\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/edunovations.com\/mcqs\/category\/ncert\/class-8\/\">NCERT CLASS 8 MCQ<\/a><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button is-style-outline is-style-outline--9\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/edunovations.com\/mcqs\/category\/ncert\/class-9\/\" target=\"_blank\" rel=\"noreferrer noopener\">NCERT CLASS 9 MCQ<span style=\"color: rgb(115, 135, 156); font-family: &quot;Helvetica Neue&quot;, Roboto, Arial, &quot;Droid Sans&quot;, sans-serif; font-size: 13px; text-align: start; white-space: normal;\">Accountancy&nbsp;<\/span><\/a><\/div>\n\n\n\n<div class=\"wp-block-button is-style-outline is-style-outline--10\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/edunovations.com\/mcqs\/category\/ncert\/class-10\/\" target=\"_blank\" rel=\"noreferrer noopener\">NCERT CLASS 10 MCQ<\/a><\/div>\n\n\n\n<div class=\"wp-block-button is-style-outline is-style-outline--11\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/edunovations.com\/mcqs\/category\/ncert\/class-11\/\" target=\"_blank\" rel=\"noreferrer noopener\">NCERT CLASS 11 MCQ<\/a><\/div>\n\n\n\n<div class=\"wp-block-button is-style-outline is-style-outline--12\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/edunovations.com\/mcqs\/category\/ncert\/class-12\/\">NCERT CLASS 12 MCQ<\/a><\/div>\n<\/div>\n\n\n\n<div class=\"wp-block-buttons is-layout-flex wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/edunovations.com\/mcqs\/category\/ncert\/\" target=\"_blank\" rel=\"noreferrer noopener\">NCERT MCQs<\/a><\/div>\n\n\n\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/edunovations.com\/mcqs\/category\/subject-wise\/indian-history\/\" target=\"_blank\" rel=\"noreferrer noopener\">Indian History MCQs<\/a><\/div>\n\n\n\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link wp-element-button\" href=\"https:\/\/edunovations.com\/mcqs\/category\/subject-wise\/indian-polity\/\" target=\"_blank\" rel=\"noreferrer noopener\"><strong>Indian Polity MCQ<\/strong>s<\/a><\/div>\n<\/div>\n\n\n\n<figure class=\"wp-block-image size-full\" id=\"Free-GK-MCQ-App\"><a href=\"https:\/\/play.google.com\/store\/apps\/details?id=com.edunovations.quiz\" target=\"_blank\" rel=\"Free GK MCQ App noreferrer noopener\"><img fetchpriority=\"high\" decoding=\"async\" width=\"900\" height=\"150\" src=\"https:\/\/edunovations.com\/mcqs\/wp-content\/uploads\/2023\/06\/Free-MCQ-App.jpg\" alt=\"Free GK MCQ App\" class=\"wp-image-743\" title=\"Free GK MCQ App\" srcset=\"https:\/\/edunovations.com\/mcqs\/wp-content\/uploads\/2023\/06\/Free-MCQ-App.jpg 900w, https:\/\/edunovations.com\/mcqs\/wp-content\/uploads\/2023\/06\/Free-MCQ-App-300x50.jpg 300w, https:\/\/edunovations.com\/mcqs\/wp-content\/uploads\/2023\/06\/Free-MCQ-App-768x128.jpg 768w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><\/a><figcaption class=\"wp-element-caption\">Free GK MCQ App<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image size-full\" id=\"Free-Daily-Current-Affairs-MCQ-App\"><a href=\"https:\/\/play.google.com\/store\/apps\/details?id=com.edunovations.quiz\" target=\"_blank\" rel=\"Free Daily Current Affairs MCQ App noopener\"><img decoding=\"async\" width=\"900\" height=\"150\" src=\"https:\/\/edunovations.com\/mcqs\/wp-content\/uploads\/2023\/06\/Banner-current-affairs-2.jpg\" alt=\"Free Daily Current Affairs MCQ App\" class=\"wp-image-744\" title=\"Free Daily Current Affairs MCQ App\" srcset=\"https:\/\/edunovations.com\/mcqs\/wp-content\/uploads\/2023\/06\/Banner-current-affairs-2.jpg 900w, https:\/\/edunovations.com\/mcqs\/wp-content\/uploads\/2023\/06\/Banner-current-affairs-2-300x50.jpg 300w, https:\/\/edunovations.com\/mcqs\/wp-content\/uploads\/2023\/06\/Banner-current-affairs-2-768x128.jpg 768w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><\/a><figcaption class=\"wp-element-caption\">Free Daily Current Affairs MCQ App<\/figcaption><\/figure>\n\n\n\n<script async=\"\" src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-6643489308705072\" crossorigin=\"anonymous\"><\/script>\r\n<ins class=\"adsbygoogle\" style=\"display:block\" data-ad-format=\"autorelaxed\" data-ad-client=\"ca-pub-6643489308705072\" data-ad-slot=\"2759669284\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\n","protected":false},"excerpt":{"rendered":"<p>NCERT Class 12 Biology&nbsp;MCQ :&nbsp;Microbes in Human Welfare Embark on a biological exploration through our MCQs page dedicated to &#8216;Microbes in Human Welfare.&#8217; Curated from a diverse array of previous year papers, including esteemed sectors such as UPSC IAS and more, this resource invites you to delve into the fascinating world of microorganisms and their [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":7104,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"ocean_post_layout":"","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"","ocean_second_sidebar":"","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"default","ocean_display_header":"default","ocean_header_style":"","ocean_center_header_left_menu":"","ocean_custom_header_template":"","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"","ocean_menu_typo_font_family":"","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"default","ocean_disable_heading":"default","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"default","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"","ocean_post_oembed":"","ocean_post_self_hosted_media":"","ocean_post_video_embed":"","ocean_link_format":"","ocean_link_format_target":"self","ocean_quote_format":"","ocean_quote_format_link":"post","ocean_gallery_link_images":"off","ocean_gallery_id":[],"footnotes":""},"categories":[71],"tags":[5282,2430,121,2427,91,2428,2078,589,590],"class_list":["post-7098","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-class-12","tag-biotechnological-applications-concepts","tag-environmental-management","tag-exam-preparation","tag-human-welfare","tag-mcqs","tag-microbes","tag-microbiology","tag-previous-year-papers","tag-upsc-ias","entry","has-media"],"_links":{"self":[{"href":"https:\/\/edunovations.com\/mcqs\/wp-json\/wp\/v2\/posts\/7098","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/edunovations.com\/mcqs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/edunovations.com\/mcqs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/edunovations.com\/mcqs\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/edunovations.com\/mcqs\/wp-json\/wp\/v2\/comments?post=7098"}],"version-history":[{"count":2,"href":"https:\/\/edunovations.com\/mcqs\/wp-json\/wp\/v2\/posts\/7098\/revisions"}],"predecessor-version":[{"id":7110,"href":"https:\/\/edunovations.com\/mcqs\/wp-json\/wp\/v2\/posts\/7098\/revisions\/7110"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/edunovations.com\/mcqs\/wp-json\/wp\/v2\/media\/7104"}],"wp:attachment":[{"href":"https:\/\/edunovations.com\/mcqs\/wp-json\/wp\/v2\/media?parent=7098"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/edunovations.com\/mcqs\/wp-json\/wp\/v2\/categories?post=7098"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/edunovations.com\/mcqs\/wp-json\/wp\/v2\/tags?post=7098"}],"curies":[{"name":"wp","href":"https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