{"id":944,"date":"2025-06-30T22:33:08","date_gmt":"2025-06-30T17:03:08","guid":{"rendered":"https:\/\/jobfocus.in\/test\/?p=944"},"modified":"2025-06-30T22:33:11","modified_gmt":"2025-06-30T17:03:11","slug":"gre-biology-practice-test-1","status":"publish","type":"post","link":"https:\/\/www.jobfocus.in\/test\/gre\/gre-biology-practice-test-1\/","title":{"rendered":"GRE Biology Practice Test 1"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Online <strong>GRE Biology Practice Test<\/strong> <strong>1<\/strong> for different Competitive Exams, Entrance Tests &amp; Job Interviews. Test yourself. Take various online tests and find out how well you score before appearing in your upcoming interviews and written tests.<\/p>\n\n\n\n<div id=\"instructionBox\">\n    <h2 style=\"text-align: center;color:#fe5555;\">Instructions<\/h2>\n    <p>Welcome to our <b style=\"color:#fe5555;\">FREE<\/b> online test. Beware of anyone asking for money to take this test.<\/p>\n    <p>Total questions: <b>20<\/b><\/p>\n    <p>Time limit: <b>30 minutes<\/b><\/p>\n    <p>Each question is worth 1 point, and there are no penalties for wrong answers.<\/p>\n    <p>DO NOT refresh the page.<\/p>\n    <p>Good luck!<\/p>\n    <center><button id=\"startButton\" onclick=\"startTest()\">Start Test<\/button><\/center>\n<\/div>\n\n<div id=\"timer\">Time remaining: <span id=\"time\">30:00<\/span><\/div>\n\n<form id=\"quizForm\">\n\n<div class=\"mcq-question\">\n    <b>1. Which of the following is NOT a function of the Golgi apparatus?<\/b>\n    <ol class=\"mcq-option\">\n        <li><input type=\"radio\" class=\"check-option\" name=\"q1\" value=\"0\"> Protein modification and sorting<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q1\" value=\"0\"> Formation of lysosomes<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q1\" value=\"1\"> ATP synthesis<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q1\" value=\"0\"> Packaging of secretory vesicles<\/li>\n    <\/ol>\n<\/div>\n\n<div class=\"mcq-question\">\n    <b>2. Match the following enzymes with their respective functions:<\/b>\n    <ol class=\"mcq-option\">\n        <li><input type=\"radio\" class=\"check-option\" name=\"q2\" value=\"1\"> DNA polymerase &#8211; Synthesises new DNA strands<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q2\" value=\"0\"> RNA polymerase &#8211; Breaks down lipids<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q2\" value=\"0\"> Lipase &#8211; Replicates mitochondria<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q2\" value=\"0\"> ATP synthase &#8211; Degrades proteins<\/li>\n    <\/ol>\n<\/div>\n\n<div class=\"mcq-question\">\n    <b>3. A researcher observes that a plant species growing in shaded areas has broader leaves compared to the same species in sunny areas. What is the most likely explanation?<\/b>\n    <ol class=\"mcq-option\">\n        <li><input type=\"radio\" class=\"check-option\" name=\"q3\" value=\"0\"> Genetic mutation due to sunlight exposure<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q3\" value=\"1\"> Phenotypic plasticity to maximise light absorption<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q3\" value=\"0\"> Disease affecting only shaded plants<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q3\" value=\"0\"> Lack of nutrients in shaded regions<\/li>\n    <\/ol>\n<\/div>\n\n<div class=\"mcq-question\">\n    <b>4. Arrange the following steps of mitosis in the correct order:<\/b>\n    <ol class=\"mcq-option\">\n        <li><input type=\"radio\" class=\"check-option\" name=\"q4\" value=\"0\"> Anaphase \u2192 Metaphase \u2192 Prophase \u2192 Telophase<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q4\" value=\"1\"> Prophase \u2192 Metaphase \u2192 Anaphase \u2192 Telophase<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q4\" value=\"0\"> Telophase \u2192 Anaphase \u2192 Prophase \u2192 Metaphase<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q4\" value=\"0\"> Metaphase \u2192 Prophase \u2192 Telophase \u2192 Anaphase<\/li>\n    <\/ol>\n<\/div>\n\n<div class=\"mcq-question\">\n    <b>5. Assertion (A): Antibiotic resistance in bacteria is an example of natural selection.<br>Reason (R): Bacteria with resistance genes survive and reproduce better in the presence of antibiotics.<\/b>\n    <ol class=\"mcq-option\">\n        <li><input type=\"radio\" class=\"check-option\" name=\"q5\" value=\"1\"> Both A and R are true, and R explains A<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q5\" value=\"0\"> Both A and R are true, but R does not explain A<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q5\" value=\"0\"> A is true, but R is false<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q5\" value=\"0\"> A is false, but R is true<\/li>\n    <\/ol>\n<\/div>\n\n<div class=\"mcq-question\">\n    <b>6. Fill in the blank: The process by which mRNA is decoded to produce a specific polypeptide chain is called __________.<\/b>\n    <ol class=\"mcq-option\">\n        <li><input type=\"radio\" class=\"check-option\" name=\"q6\" value=\"0\"> Replication<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q6\" value=\"1\"> Translation<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q6\" value=\"0\"> Transcription<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q6\" value=\"0\"> Translocation<\/li>\n    <\/ol>\n<\/div>\n\n<div class=\"mcq-question\">\n    <b>7. Which of the following ecological interactions is an example of mutualism?<\/b>\n    <ol class=\"mcq-option\">\n        <li><input type=\"radio\" class=\"check-option\" name=\"q7\" value=\"0\"> A lion hunting a deer<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q7\" value=\"0\"> A tapeworm living in a human intestine<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q7\" value=\"1\"> Bees pollinating flowers while collecting nectar<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q7\" value=\"0\"> A fungus decomposing dead wood<\/li>\n    <\/ol>\n<\/div>\n\n<div class=\"mcq-question\">\n    <b>8. A scientist observes that a population of moths in a forest has two colour variants\u2014light and dark. Over time, the dark variant becomes more common due to industrial pollution darkening tree bark. This is an example of:<\/b>\n    <ol class=\"mcq-option\">\n        <li><input type=\"radio\" class=\"check-option\" name=\"q8\" value=\"0\"> Genetic drift<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q8\" value=\"1\"> Directional selection<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q8\" value=\"0\"> Stabilizing selection<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q8\" value=\"0\"> Artificial selection<\/li>\n    <\/ol>\n<\/div>\n\n<div class=\"mcq-question\">\n    <b>9. Arrange the following taxonomic categories in order from most inclusive to least inclusive:<\/b>\n    <ol class=\"mcq-option\">\n        <li><input type=\"radio\" class=\"check-option\" name=\"q9\" value=\"0\"> Species \u2192 Genus \u2192 Family \u2192 Order<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q9\" value=\"1\"> Kingdom \u2192 Phylum \u2192 Class \u2192 Order<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q9\" value=\"0\"> Family \u2192 Genus \u2192 Species \u2192 Class<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q9\" value=\"0\"> Order \u2192 Family \u2192 Genus \u2192 Phylum<\/li>\n    <\/ol>\n<\/div>\n\n<div class=\"mcq-question\">\n    <b>10. Assertion (A): C4 plants are more efficient in photosynthesis under high temperatures and light intensity compared to C3 plants.<br>Reason (R): C4 plants have a specialized Kranz anatomy that minimizes photorespiration.<\/b>\n    <ol class=\"mcq-option\">\n        <li><input type=\"radio\" class=\"check-option\" name=\"q10\" value=\"1\"> Both A and R are true, and R explains A<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q10\" value=\"0\"> Both A and R are true, but R does not explain A<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q10\" value=\"0\"> A is true, but R is false<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q10\" value=\"0\"> A is false, but R is true<\/li>\n    <\/ol>\n<\/div>\n\n<div class=\"mcq-question\">\n    <b>11. In the human digestive system, bile is produced by which organ?<\/b>\n    <ol class=\"mcq-option\">\n        <li><input type=\"radio\" class=\"check-option\" name=\"q11\" value=\"0\"> Pancreas<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q11\" value=\"1\"> Liver<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q11\" value=\"0\"> Stomach<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q11\" value=\"0\"> Gallbladder<\/li>\n    <\/ol>\n<\/div>\n\n<div class=\"mcq-question\">\n    <b>12. Which of these cell organelles contains its own DNA?<\/b>\n    <ol class=\"mcq-option\">\n        <li><input type=\"radio\" class=\"check-option\" name=\"q12\" value=\"0\"> Endoplasmic reticulum<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q12\" value=\"0\"> Golgi apparatus<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q12\" value=\"1\"> Mitochondrion<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q12\" value=\"0\"> Lysosome<\/li>\n    <\/ol>\n<\/div>\n\n<div class=\"mcq-question\">\n    <b>13. A population of butterflies shows 36% homozygous dominant (AA), 48% heterozygous (Aa), and 16% homozygous recessive (aa) individuals. Is this population in Hardy-Weinberg equilibrium?<\/b>\n    <ol class=\"mcq-option\">\n        <li><input type=\"radio\" class=\"check-option\" name=\"q13\" value=\"1\"> Yes, because the observed frequencies match expected frequencies<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q13\" value=\"0\"> No, because there are too many heterozygotes<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q13\" value=\"0\"> No, because the recessive allele is too common<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q13\" value=\"0\"> Cannot be determined without migration rates<\/li>\n    <\/ol>\n<\/div>\n\n<div class=\"mcq-question\">\n    <b>14. Arrange the following steps of the scientific method in correct order:<\/b>\n    <ol class=\"mcq-option\">\n        <li><input type=\"radio\" class=\"check-option\" name=\"q14\" value=\"0\"> Analyze data \u2192 Form hypothesis \u2192 Conduct experiment \u2192 Make observation<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q14\" value=\"1\"> Make observation \u2192 Form hypothesis \u2192 Conduct experiment \u2192 Analyze data<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q14\" value=\"0\"> Form hypothesis \u2192 Make observation \u2192 Analyze data \u2192 Conduct experiment<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q14\" value=\"0\"> Conduct experiment \u2192 Analyze data \u2192 Make observation \u2192 Form hypothesis<\/li>\n    <\/ol>\n<\/div>\n\n<div class=\"mcq-question\">\n    <b>15. Assertion (A): The resting membrane potential of neurons is negative.<br>Reason (R): There are more sodium ions inside the cell than outside at rest.<\/b>\n    <ol class=\"mcq-option\">\n        <li><input type=\"radio\" class=\"check-option\" name=\"q15\" value=\"0\"> Both A and R are true, and R explains A<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q15\" value=\"0\"> Both A and R are true, but R does not explain A<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q15\" value=\"1\"> A is true, but R is false<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q15\" value=\"0\"> A is false, but R is true<\/li>\n    <\/ol>\n<\/div>\n\n<div class=\"mcq-question\">\n    <b>16. Which biome is characterized by permafrost, low-growing vegetation, and extremely cold temperatures?<\/b>\n    <ol class=\"mcq-option\">\n        <li><input type=\"radio\" class=\"check-option\" name=\"q16\" value=\"0\"> Tropical rainforest<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q16\" value=\"0\"> Temperate grassland<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q16\" value=\"1\"> Tundra<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q16\" value=\"0\"> Deciduous forest<\/li>\n    <\/ol>\n<\/div>\n\n<div class=\"mcq-question\">\n    <b>17. Fill in the blank: The __________ is the basic functional unit of the kidney where blood filtration occurs.<\/b>\n    <ol class=\"mcq-option\">\n        <li><input type=\"radio\" class=\"check-option\" name=\"q17\" value=\"0\"> Alveolus<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q17\" value=\"1\"> Nephron<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q17\" value=\"0\"> Neuron<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q17\" value=\"0\"> Hepatocyte<\/li>\n    <\/ol>\n<\/div>\n\n<div class=\"mcq-question\">\n    <b>18. In a food chain with the sequence: Grass \u2192 Grasshopper \u2192 Frog \u2192 Snake \u2192 Hawk, which organism is the tertiary consumer?<\/b>\n    <ol class=\"mcq-option\">\n        <li><input type=\"radio\" class=\"check-option\" name=\"q18\" value=\"0\"> Grasshopper<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q18\" value=\"0\"> Frog<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q18\" value=\"1\"> Snake<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q18\" value=\"0\"> Hawk<\/li>\n    <\/ol>\n<\/div>\n\n<div class=\"mcq-question\">\n    <b>19. Which of the following is NOT a characteristic of prokaryotic cells?<\/b>\n    <ol class=\"mcq-option\">\n        <li><input type=\"radio\" class=\"check-option\" name=\"q19\" value=\"0\"> Lack of membrane-bound organelles<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q19\" value=\"0\"> Presence of circular DNA<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q19\" value=\"1\"> Presence of nuclear membrane<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q19\" value=\"0\"> Smaller ribosomes (70S)<\/li>\n    <\/ol>\n<\/div>\n\n<div class=\"mcq-question\">\n    <b>20. A researcher crosses two heterozygous pea plants (Tt \u00d7 Tt) for tall stem. What percentage of offspring will show the recessive phenotype?<\/b>\n    <ol class=\"mcq-option\">\n        <li><input type=\"radio\" class=\"check-option\" name=\"q20\" value=\"0\"> 0%<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q20\" value=\"1\"> 25%<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q20\" value=\"0\"> 50%<\/li>\n        <li><input type=\"radio\" class=\"check-option\" name=\"q20\" value=\"0\"> 75%<\/li>\n    <\/ol>\n<\/div>\n\n    <button type=\"button\" id=\"submitButton\" onclick=\"submitQuiz()\">Submit<\/button>\n<\/form>\n\n<div id=\"countdown\">\n    <div class=\"result-box\" id=\"result\"><\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Online GRE Biology Practice Test 1 for different Competitive Exams, Entrance Tests &amp; Job Interviews. Test yourself. Take various online [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_feature_clip_id":0,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_post_was_ever_published":false},"categories":[93],"tags":[94,95,30],"class_list":["post-944","post","type-post","status-publish","format-standard","hentry","category-gre","tag-gre-biology-practice-test","tag-gre-mock-test","tag-science-test"],"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"_links":{"self":[{"href":"https:\/\/www.jobfocus.in\/test\/wp-json\/wp\/v2\/posts\/944","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jobfocus.in\/test\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jobfocus.in\/test\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jobfocus.in\/test\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jobfocus.in\/test\/wp-json\/wp\/v2\/comments?post=944"}],"version-history":[{"count":1,"href":"https:\/\/www.jobfocus.in\/test\/wp-json\/wp\/v2\/posts\/944\/revisions"}],"predecessor-version":[{"id":945,"href":"https:\/\/www.jobfocus.in\/test\/wp-json\/wp\/v2\/posts\/944\/revisions\/945"}],"wp:attachment":[{"href":"https:\/\/www.jobfocus.in\/test\/wp-json\/wp\/v2\/media?parent=944"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jobfocus.in\/test\/wp-json\/wp\/v2\/categories?post=944"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jobfocus.in\/test\/wp-json\/wp\/v2\/tags?post=944"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}