{"id":22632,"date":"2026-06-28T13:20:00","date_gmt":"2026-06-28T07:50:00","guid":{"rendered":"https:\/\/agriculturereview.com\/?p=22632"},"modified":"2026-06-28T13:23:55","modified_gmt":"2026-06-28T07:53:55","slug":"lea-board-exam-mock-test-animal-genetics-mating-systems-practice-questions","status":"publish","type":"post","link":"https:\/\/agriculturereview.com\/hi\/lea-board-exam-mock-test-animal-genetics-mating-systems-practice-questions\/","title":{"rendered":"LEA Board Exam Mock Test: Animal Breeding &amp; Genetics Practice Questions With PDF"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Ready to ace your agriculture exams? Challenge yourself with our ultimate Animal Science Board Exam Reviewer! We&#8217;ve put together 50 high-yield multiple-choice questions covering all things from Animal Breeding &amp; Genetics, complete with a verified answer key. Perfect for your upcoming board exams. Take the mock test today and get a FREE downloadable PDF reviewer at the end!<br><\/p>\n\n\n\n<div class=\"quiz-guide-container\">\r\n  <div id=\"ez-toc-container\" class=\"ez-toc-v2_0_85 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Table of Contents<\/p>\n<label for=\"ez-toc-cssicon-toggle-item-6a41973be8ade\" class=\"ez-toc-cssicon-toggle-label\"><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><\/label><input type=\"checkbox\"  id=\"ez-toc-cssicon-toggle-item-6a41973be8ade\"  aria-label=\"Toggle\" \/><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:\/\/agriculturereview.com\/hi\/lea-board-exam-mock-test-animal-genetics-mating-systems-practice-questions\/#How_to_Attempt_the_Mock_Test\" >How to Attempt the Mock Test<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/agriculturereview.com\/hi\/lea-board-exam-mock-test-animal-genetics-mating-systems-practice-questions\/#Check_the_Parameters\" >Check the Parameters<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/agriculturereview.com\/hi\/lea-board-exam-mock-test-animal-genetics-mating-systems-practice-questions\/#Start_the_Quiz\" >Start the Quiz<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/agriculturereview.com\/hi\/lea-board-exam-mock-test-animal-genetics-mating-systems-practice-questions\/#Select_Your_Answers\" >Select Your Answers<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/agriculturereview.com\/hi\/lea-board-exam-mock-test-animal-genetics-mating-systems-practice-questions\/#Review_Your_Work\" >Review Your Work<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/agriculturereview.com\/hi\/lea-board-exam-mock-test-animal-genetics-mating-systems-practice-questions\/#Submit_and_Evaluate\" >Submit and Evaluate<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/agriculturereview.com\/hi\/lea-board-exam-mock-test-animal-genetics-mating-systems-practice-questions\/#Download_Free_PDF\" >Download Free PDF<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/agriculturereview.com\/hi\/lea-board-exam-mock-test-animal-genetics-mating-systems-practice-questions\/#What_was_your_score\" >What was your score?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/agriculturereview.com\/hi\/lea-board-exam-mock-test-animal-genetics-mating-systems-practice-questions\/#What_topics_are_covered_in_this_Animal_Science_Board_Exam_Reviewer\" >What topics are covered in this Animal Science Board Exam Reviewer?<\/a><\/li><\/ul><\/nav><\/div>\n<h2><span class=\"ez-toc-section\" id=\"How_to_Attempt_the_Mock_Test\"><\/span>How to Attempt the Mock Test<span class=\"ez-toc-section-end\"><\/span><\/h2>\r\n  <p class=\"guide-intro\">Please read these instructions carefully before starting the Licensure Examination for Agriculturist (LEA) mock test.<\/p>\r\n  \r\n  <div class=\"step-wrapper\">\r\n    <div class=\"step\">\r\n      <div class=\"step-number\">1<\/div>\r\n      <div class=\"step-content\">\r\n        <h3><span class=\"ez-toc-section\" id=\"Check_the_Parameters\"><\/span>Check the Parameters<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\n        <p>You have exactly <strong>50 minutes<\/strong> to complete <strong>50 questions<\/strong>. Ensure you have a stable connection and are free from distractions.<\/p>\r\n      <\/div>\r\n    <\/div>\r\n\r\n    <div class=\"step\">\r\n      <div class=\"step-number\">2<\/div>\r\n      <div class=\"step-content\">\r\n        <h3><span class=\"ez-toc-section\" id=\"Start_the_Quiz\"><\/span>Start the Quiz<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\n        <p>Click the <strong>&#8220;Start Mock Test&#8221;<\/strong> button. The timer will begin immediately and will be visible at the top of your screen. The timer cannot be paused once started.<\/p>\r\n      <\/div>\r\n    <\/div>\r\n\r\n    <div class=\"step\">\r\n      <div class=\"step-number\">3<\/div>\r\n      <div class=\"step-content\">\r\n        <h3><span class=\"ez-toc-section\" id=\"Select_Your_Answers\"><\/span>Select Your Answers<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\n        <p>Read each question carefully. Click on the option you believe is correct. You can only select one answer per question. Use the <strong>Next<\/strong> and <strong>Previous<\/strong> buttons to navigate.<\/p>\r\n      <\/div>\r\n    <\/div>\r\n\r\n    <div class=\"step\">\r\n      <div class=\"step-number\">4<\/div>\r\n      <div class=\"step-content\">\r\n        <h3><span class=\"ez-toc-section\" id=\"Review_Your_Work\"><\/span>Review Your Work<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\n        <p>If time permits, go back and review any questions you were unsure about. You can change your selected answers at any point before final submission.<\/p>\r\n      <\/div>\r\n    <\/div>\r\n\r\n    <div class=\"step\">\r\n      <div class=\"step-number\">5<\/div>\r\n      <div class=\"step-content\">\r\n        <h3><span class=\"ez-toc-section\" id=\"Submit_and_Evaluate\"><\/span>Submit and Evaluate<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\n        <p>Click <strong>&#8220;Submit Quiz&#8221;<\/strong> when you are finished. If the 50-minute timer reaches zero, the test will auto-submit. Your final score and correct answers will be displayed immediately after submission.<\/p>\r\n      <\/div>\r\n    <\/div>\r\n\r\n    <!-- NEW STEP 6: PDF DOWNLOAD -->\r\n    <div class=\"step\">\r\n      <div class=\"step-number\">6<\/div>\r\n      <div class=\"step-content\">\r\n        <h3><span class=\"ez-toc-section\" id=\"Download_Free_PDF\"><\/span>Download Free PDF<span class=\"ez-toc-section-end\"><\/span><\/h3>\r\n        <p>Once you submit your mock test and view your results, a secure link will appear. Click <strong>&#8220;Download PDF&#8221;<\/strong> to save a complete copy of the questions and answers for offline revision.<\/p>\r\n      <\/div>\r\n    <\/div>\r\n  <\/div>\r\n<\/div>\r\n\r\n<style>\r\n  \/* ==========================================================================\r\n     AGRICULTURE REVIEW: UNBOXED TIMELINE GUIDE\r\n     ========================================================================== *\/\r\n  .quiz-guide-container {\r\n    width: 100%; \r\n    max-width: 900px;\r\n    margin: 0 auto 40px auto;\r\n  }\r\n\r\n  .quiz-guide-container h2 {\r\n    color: #2b4d09; \/* Brand Green *\/\r\n    margin-top: 0;\r\n    margin-bottom: 12px;\r\n    font-size: clamp(1.5rem, 3vw, 2rem);\r\n    font-weight: 800;\r\n    text-transform: uppercase;\r\n    font-family: 'Playfair Display', serif;\r\n  }\r\n\r\n  .guide-intro {\r\n    color: #475569;\r\n    margin-bottom: 40px;\r\n    font-size: clamp(16px, 1.5vw, 18px);\r\n    line-height: 1.6;\r\n    font-family: 'Poppins', sans-serif;\r\n  }\r\n\r\n  .step-wrapper {\r\n    position: relative;\r\n    display: flex;\r\n    flex-direction: column;\r\n    gap: 32px; \r\n  }\r\n\r\n  \/* The sleek vertical connecting line *\/\r\n  .step-wrapper::before {\r\n    content: '';\r\n    position: absolute;\r\n    top: 10px; \r\n    bottom: 20px;\r\n    left: 21px; \r\n    width: 2px;\r\n    background-color: #E2E8F0;\r\n    z-index: 0;\r\n  }\r\n\r\n  .step {\r\n    display: flex;\r\n    align-items: flex-start;\r\n    position: relative;\r\n    z-index: 1;\r\n    background: transparent; \r\n    border: none; \r\n    padding: 0; \r\n  }\r\n\r\n  .step-number {\r\n    background-color: #f7cd0d; \r\n    color: #0F172A; \r\n    font-weight: 800;\r\n    font-size: 1.1rem;\r\n    min-width: 44px;\r\n    height: 44px;\r\n    display: flex;\r\n    align-items: center;\r\n    justify-content: center;\r\n    border-radius: 50%;\r\n    margin-right: 24px;\r\n    flex-shrink: 0;\r\n    font-family: 'Poppins', sans-serif;\r\n    box-shadow: 0 0 0 6px #ffffff; \r\n  }\r\n\r\n  \/* Make the final step number pop a bit more to emphasize the reward *\/\r\n  .step:last-child .step-number {\r\n    background-color: #2b4d09;\r\n    color: #ffffff;\r\n  }\r\n\r\n  .step-content h3 {\r\n    margin: 0 0 8px 0;\r\n    color: #2b4d09; \r\n    font-size: clamp(18px, 2.5vw, 22px);\r\n    font-weight: 800;\r\n    font-family: 'Playfair Display', serif;\r\n    line-height: 1.3;\r\n    padding-top: 6px; \r\n  }\r\n\r\n  .step-content p {\r\n    margin: 0;\r\n    color: #475569;\r\n    line-height: 1.6;\r\n    font-size: clamp(15px, 1.5vw, 17px);\r\n    font-family: 'Poppins', sans-serif;\r\n  }\r\n  \r\n  \/* Mobile Responsiveness *\/\r\n  @media (max-width: 600px) {\r\n    .step-number {\r\n      min-width: 36px;\r\n      height: 36px;\r\n      font-size: 1rem;\r\n      margin-right: 16px;\r\n      box-shadow: 0 0 0 4px #ffffff;\r\n    }\r\n    .step-wrapper::before {\r\n      left: 17px; \r\n    }\r\n    .step-content h3 {\r\n      padding-top: 4px;\r\n    }\r\n  }\r\n<\/style>\n\n\n\n<p class=\"wp-block-paragraph\"><br><\/p>\n\n\n\n<div class=\"exam-countdown-container\">\r\n  <div class=\"timer-title\">Time Left Until Agriculture Licensure Exam:<\/div>\r\n  <div id=\"exam-timer\" class=\"timer-display\">\r\n    <div class=\"time-box\"><span id=\"days\">00<\/span><div class=\"time-label\">Days<\/div><\/div>\r\n    <div class=\"colon\">:<\/div>\r\n    <div class=\"time-box\"><span id=\"hours\">00<\/span><div class=\"time-label\">Hours<\/div><\/div>\r\n    <div class=\"colon\">:<\/div>\r\n    <div class=\"time-box\"><span id=\"minutes\">00<\/span><div class=\"time-label\">Minutes<\/div><\/div>\r\n    <div class=\"colon\">:<\/div>\r\n    <div class=\"time-box\"><span id=\"seconds\">00<\/span><div class=\"time-label\">Seconds<\/div><\/div>\r\n  <\/div>\r\n  <div id=\"timer-expired\" style=\"display: none;\">The Exam Has Begun! 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This reviewer test is designed to challenge your understanding of the Animal Breeding & Genetics topic from Animal Science subject.<\/p>\n        <\/div>\n        \n        <div class=\"quiz-meta-box\">\n            <div class=\"meta-item\">\n                <span class=\"meta-icon\">\u23f1\ufe0f<\/span>\n                <div class=\"meta-text\">\n                    <strong>50 Minutes<\/strong>\n                    <span>Time Limit<\/span>\n                <\/div>\n            <\/div>\n            <div class=\"meta-item\">\n                <span class=\"meta-icon\">\ud83d\udcdd<\/span>\n                <div class=\"meta-text\">\n                    <strong><span id=\"start-total-q\">0<\/span> Questions<\/strong>\n                    <span>Multiple Choice<\/span>\n                <\/div>\n            <\/div>\n            <div class=\"meta-item\">\n                <span class=\"meta-icon\">\u2696\ufe0f<\/span>\n                <div class=\"meta-text\">\n                    <strong>+1 \/ 0<\/strong>\n                    <span>PRC Marking Scheme<\/span>\n                <\/div>\n            <\/div>\n        <\/div>\n\n        <div class=\"ar-note-box\">\n            \ud83d\udca1 Note: You can download the PDF version of this reviewer on the results screen after completing the test.\n        <\/div>\n\n        <button id=\"start-btn\" class=\"ar-btn-start\">Start Mock Test \u27a1<\/button>\n    <\/div>\n\n    <div id=\"quiz-active-screen\" class=\"quiz-section\">\n        <div class=\"quiz-header\">\n            <div class=\"quiz-progress\">Question <span id=\"current-q-num\">1<\/span> of <span id=\"total-q-num\">50<\/span><\/div>\n            <div class=\"quiz-timer\" id=\"timer-display\">100:00<\/div>\n        <\/div>\n        \n        <div id=\"halfway-alert\" class=\"ar-alert\" style=\"display: none;\">\n            \ud83c\udf89 <strong>Halfway there!<\/strong> Keep up the great work. Don't forget to join our Facebook Group at the end for more free reviewer PDFs!\n        <\/div>\n\n        <div class=\"quiz-body\">\n            <div id=\"question-text\" class=\"question-text-title\">Question text goes here?<\/div>\n            <div id=\"options-container\">\n            <\/div>\n        <\/div>\n        \n        <div class=\"quiz-footer\">\n            <button id=\"prev-btn\" class=\"ar-btn ar-btn-outline\" style=\"visibility: hidden;\">\u2b05 Previous<\/button>\n            <button id=\"clear-btn\" class=\"ar-btn ar-btn-clear\" style=\"visibility: hidden;\">\u2716 Clear<\/button>\n            <button id=\"next-btn\" class=\"ar-btn ar-btn-primary\">Next \u27a1<\/button>\n        <\/div>\n    <\/div>\n\n    <div id=\"quiz-result-screen\" class=\"quiz-section\">\n        <div class=\"quiz-title\" style=\"text-align: center;\">Test Completed!<\/div>\n        <div class=\"score-card\">\n            <div class=\"score-number\"><span id=\"final-score\">0<\/span> \/ <span id=\"total-score\">50<\/span><\/div>\n            <div class=\"score-text\">Your Final Score<\/div>\n            \n            <div class=\"score-stats\">\n                <span>\u2705 Correct: <strong id=\"stat-correct\">0<\/strong><\/span>\n                <span>\u274c Incorrect: <strong id=\"stat-wrong\">0<\/strong><\/span>\n                <span>\u26aa Skipped: <strong id=\"stat-skipped\">0<\/strong><\/span>\n                <span>\u23f3 Time: <strong id=\"stat-time\">00:00<\/strong><\/span>\n            <\/div>\n        <\/div>\n        \n        <div class=\"action-buttons\">\n            <div id=\"pdf-gate-container\" style=\"display: flex; flex-direction: column; width: 100%; max-width: 280px; gap: 8px;\">\n                <button id=\"fb-unlock-btn\" class=\"ar-btn\" style=\"background: #0084ff; color: #ffffff; border: none; box-shadow: 0 4px 6px rgba(0, 132, 255, 0.2); width: 100%;\">\n                    \ud83d\udcac Join FB Channel to Unlock PDF\n                <\/button>\n                <a href=\"https:\/\/agriculturereview.com\/wp-content\/uploads\/2026\/06\/Agriculture-Review-Animal-Genetics-Reviewer.pdf\" target=\"_blank\" download=\"Agriculture-Review-Animal-Genetics-Reviewer.pdf\" id=\"actual-download-btn\" class=\"ar-btn ar-btn-primary\" style=\"display: none; text-decoration: none; align-items: center; justify-content: center; gap: 8px; width: 100%;\">\n                    \ud83d\udce5 Download PDF Now\n                <\/a>\n            <\/div>\n\n            <button id=\"share-btn\" class=\"ar-btn ar-btn-orange\">\ud83d\udce2 Share Score<\/button>\n            <button id=\"restart-btn\" class=\"ar-btn ar-btn-outline\">\ud83d\udd04 Reattempt<\/button>\n        <\/div>\n\n        <div class=\"results-breakdown\">\n            <div class=\"question-text-title\">Detailed Breakdown<\/div>\n            <div id=\"breakdown-container\">\n            <\/div>\n        <\/div>\n    <\/div>\n<\/div>\n\n<div class=\"ar-engagement-prompt\" style=\"max-width: 850px; margin: 30px auto; text-align: center; font-family: inherit; padding: 0 15px;\">\n    <h3 style=\"color: #0F172A; font-weight: 800; margin-bottom: 10px; font-size: 1.5rem;\"><span class=\"ez-toc-section\" id=\"What_was_your_score\"><\/span>What was your score?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n    <p style=\"color: #475569; font-size: 1.1rem; line-height: 1.6; margin: 0;\">Did you pass the 75% mark? Drop your final score in the comments below and let us know which question tricked you the most! \u2b07\ufe0f<\/p>\n<\/div>\n\n<div class=\"ar-internal-link\" style=\"max-width: 850px; margin: 0 auto 50px auto; text-align: center; font-family: inherit; padding: 24px; background: #F8FAFC; border-radius: 5px; border: 1px solid #E2E8F0; box-sizing: border-box;\">\n    <strong style=\"color: #13612E; font-size: 1.1rem;\">Finished with Mock Test?<\/strong> <br>\n    <a href=\"https:\/\/agriculturereview.com\/category\/mock-test\/\" style=\"color: #F5A524; font-weight: 800; text-decoration: none; font-size: 1.2rem; display: inline-block; margin-top: 8px; transition: color 0.2s ease;\">\n        Try our Next LEA Mock Test here! \u27a1\n    <\/a>\n<\/div>\n\n<style>\n    \/* ==========================================\n       1. 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Pasteur\"],\n        correctAnswer: 1\n    },\n    {\n        question: \"What is the basic physical and functional unit of heredity?\",\n        options: [\"Chromosome\", \"Gene\", \"Protein\", \"Nucleus\"],\n        correctAnswer: 1\n    },\n    {\n        question: \"What term refers to the alternative forms of a single gene that occupy the same locus on homologous chromosomes?\",\n        options: [\"Chromatids\", \"Alleles\", \"Genomes\", \"Autosomes\"],\n        correctAnswer: 1\n    },\n    {\n        question: \"The exact genetic constitution or makeup of an individual organism is referred to as its:\",\n        options: [\"Phenotype\", \"Karyotype\", \"Genotype\", \"Somatotype\"],\n        correctAnswer: 2\n    },\n    {\n        question: \"The observable physical or biochemical characteristics of an organism, as determined by both genetic makeup and environmental influences, is called the:\",\n        options: [\"Phenotype\", \"Genotype\", \"Dominance\", \"Pedigree\"],\n        correctAnswer: 0\n    },\n    {\n        question: \"When an animal possesses two identical alleles for a specific trait (e.g., BB or bb), its genetic state is described as:\",\n        options: [\"Heterozygous\", \"Hemizygous\", \"Homozygous\", \"Dizygous\"],\n        correctAnswer: 2\n    },\n    {\n        question: \"Which breeding system involves the mating of animals that are more closely related than the average of the breed or population?\",\n        options: [\"Crossbreeding\", \"Outcrossing\", \"Inbreeding\", \"Grading up\"],\n        correctAnswer: 2\n    },\n    {\n        question: \"The mating of unrelated animals within the same breed is known as:\",\n        options: [\"Linebreeding\", \"Outcrossing\", \"Crossbreeding\", \"Species hybridization\"],\n        correctAnswer: 1\n    },\n    {\n        question: \"The breeding practice of mating animals from two different established breeds is called:\",\n        options: [\"Inbreeding\", \"Linebreeding\", \"Crossbreeding\", \"Purebreeding\"],\n        correctAnswer: 2\n    },\n    {\n        question: \"What refers to the biological phenomenon where crossbred offspring exhibit superiority in performance compared to the average of their purebred parents?\",\n        options: [\"Inbreeding depression\", \"Heterosis\", \"Pleiotropy\", \"Epistasis\"],\n        correctAnswer: 1\n    },\n    {\n        question: \"A decline in the overall performance, vigor, and fertility of animals due to the continuous mating of closely related individuals is known as:\",\n        options: [\"Inbreeding depression\", \"Hybrid vigor\", \"Genetic drift\", \"Mutation\"],\n        correctAnswer: 0\n    },\n    {\n        question: \"Traits that are categorically distinct, controlled by one or a few gene pairs, and minimally affected by the environment (e.g., coat color or presence of horns) are called:\",\n        options: [\"Quantitative traits\", \"Qualitative traits\", \"Polygenic traits\", \"Continuous traits\"],\n        correctAnswer: 1\n    },\n    {\n        question: \"Traits that exhibit a continuous range of variation, are controlled by many genes, and are significantly influenced by environmental factors (e.g., milk yield or weaning weight) are known as:\",\n        options: [\"Qualitative traits\", \"Simple traits\", \"Mendelian traits\", \"Quantitative traits\"],\n        correctAnswer: 3\n    },\n    {\n        question: \"The proportion of total phenotypic variation in a population that is attributable to genetic variation is called:\",\n        options: [\"Repeatability\", \"Heritability\", \"Heterosis\", \"Selection differential\"],\n        correctAnswer: 1\n    },\n    {\n        question: \"An allele that expresses its phenotypic effect even when heterozygous with a recessive allele is termed:\",\n        options: [\"Dominant\", \"Recessive\", \"Codominant\", \"Lethal\"],\n        correctAnswer: 0\n    },\n    {\n        question: \"An allele whose phenotypic expression is masked when a dominant allele is present is termed:\",\n        options: [\"Dominant\", \"Recessive\", \"Epistatic\", \"Additive\"],\n        correctAnswer: 1\n    },\n    {\n        question: \"The specific physical location or position of a gene on a chromosome is called its:\",\n        options: [\"Centromere\", \"Telomere\", \"Locus\", \"Chiasma\"],\n        correctAnswer: 2\n    },\n    {\n        question: \"A mating designed to determine the unknown genotype of an individual displaying a dominant phenotype by crossing it with a homozygous recessive individual is a:\",\n        options: [\"Back cross\", \"Outcross\", \"Test cross\", \"Reciprocal cross\"],\n        correctAnswer: 2\n    },\n    {\n        question: \"A simple graphical method used to predict the possible genotypic and phenotypic frequencies of offspring from a specific genetic cross is the:\",\n        options: [\"Pedigree chart\", \"Punnett square\", \"Bell curve\", \"Karyotype diagram\"],\n        correctAnswer: 1\n    },\n    {\n        question: \"What is the general term for the mating of animals that are less closely related than the average of the population from which they came?\",\n        options: [\"Inbreeding\", \"Linebreeding\", \"Outbreeding\", \"Intrabreeding\"],\n        correctAnswer: 2\n    },\n    {\n        question: \"The specialized type of cell division that reduces the chromosome number by half and results in the formation of gametes (sperm and egg) is:\",\n        options: [\"Mitosis\", \"Meiosis\", \"Binary fission\", \"Budding\"],\n        correctAnswer: 1\n    },\n    {\n        question: \"The process of somatic cell division that results in two daughter cells with identical chromosome numbers and genetic makeup as the parent cell is:\",\n        options: [\"Meiosis\", \"Apoptosis\", \"Mitosis\", \"Synapsis\"],\n        correctAnswer: 2\n    },\n    {\n        question: \"A mild form of inbreeding that aims to maintain a high degree of genetic relationship to a highly regarded, outstanding ancestor is known as:\",\n        options: [\"Close breeding\", \"Linebreeding\", \"Crossbreeding\", \"Outcrossing\"],\n        correctAnswer: 1\n    },\n    {\n        question: \"The genetic interaction where the expression of one gene modifies or masks the expression of another gene located at a different locus is called:\",\n        options: [\"Pleiotropy\", \"Dominance\", \"Epistasis\", \"Linkage\"],\n        correctAnswer: 2\n    },\n    {\n        question: \"When a single gene has an effect on multiple, seemingly unrelated phenotypic traits, the phenomenon is termed:\",\n        options: [\"Epistasis\", \"Pleiotropy\", \"Polygeny\", \"Multiple alleles\"],\n        correctAnswer: 1\n    },\n    {\n        question: \"In most mammalian species (including cattle, swine, and sheep), the sex chromosomes for a normal female are:\",\n        options: [\"XY\", \"ZW\", \"XX\", \"ZZ\"],\n        correctAnswer: 2\n    },\n    {\n        question: \"In poultry and other avian species, the sex chromosomes for a normal male are:\",\n        options: [\"XX\", \"XY\", \"ZW\", \"ZZ\"],\n        correctAnswer: 3\n    },\n    {\n        question: \"Traits that are controlled by genes located on autosomes but are only phenotypically expressed in one sex (such as milk production or egg laying) are:\",\n        options: [\"Sex-linked traits\", \"Sex-limited traits\", \"Sex-influenced traits\", \"Holandric traits\"],\n        correctAnswer: 1\n    },\n    {\n        question: \"Traits whose governing genes are physically located on the sex chromosomes (usually the X or Z chromosome) are known as:\",\n        options: [\"Sex-linked traits\", \"Sex-limited traits\", \"Sex-influenced traits\", \"Autosomal traits\"],\n        correctAnswer: 0\n    },\n    {\n        question: \"The systematic process of allowing certain animals to reproduce more than others, thereby determining which individuals become parents of the next generation, is:\",\n        options: [\"Mutation\", \"Selection\", \"Migration\", \"Genetic drift\"],\n        correctAnswer: 1\n    },\n    {\n        question: \"The numerical difference between the average performance of the selected breeding individuals and the average performance of the population from which they were chosen is the:\",\n        options: [\"Heritability estimate\", \"Selection differential\", \"Generation interval\", \"Breeding value\"],\n        correctAnswer: 1\n    },\n    {\n        question: \"An animal that possesses two different alleles for a specific genetic trait (e.g., Bb) is described as:\",\n        options: [\"Homozygous\", \"Heterozygous\", \"Hemizygous\", \"Autosomal\"],\n        correctAnswer: 1\n    },\n    {\n        question: \"Which molecule serves as the primary carrier of genetic information in nearly all living organisms?\",\n        options: [\"RNA\", \"Protein\", \"DNA\", \"Carbohydrate\"],\n        correctAnswer: 2\n    },\n    {\n        question: \"The biological process by which a specific segment of DNA is copied into a complementary strand of messenger RNA (mRNA) is known as:\",\n        options: [\"Translation\", \"Transcription\", \"Replication\", \"Transduction\"],\n        correctAnswer: 1\n    },\n    {\n        question: \"The cellular process where ribosomes synthesize proteins using the genetic sequence carried by mRNA is called:\",\n        options: [\"Transcription\", \"Replication\", \"Translation\", \"Mutation\"],\n        correctAnswer: 2\n    },\n    {\n        question: \"If a homozygous polled (hornless) bull (PP) is mated to a homozygous horned cow (pp), and the polled trait is completely dominant, what is the expected phenotype of the offspring?\",\n        options: [\"100% Horned\", \"50% Polled, 50% Horned\", \"100% Polled\", \"75% Polled, 25% Horned\"],\n        correctAnswer: 2\n    },\n    {\n        question: \"In a monohybrid cross between two heterozygous animals (Bb x Bb) for a trait with complete dominance, what is the expected phenotypic ratio of their offspring?\",\n        options: [\"1:2:1\", \"3:1\", \"9:3:3:1\", \"1:1\"],\n        correctAnswer: 1\n    },\n    {\n        question: \"Among the following categories of livestock traits, which generally exhibits the lowest heritability (usually < 0.20)?\",\n        options: [\"Carcass traits (e.g., ribeye area)\", \"Growth traits (e.g., yearling weight)\", \"Productive traits (e.g., milk yield)\", \"Reproductive traits (e.g., litter size)\"],\n        correctAnswer: 3\n    },\n    {\n        question: \"Carcass traits such as backfat thickness or loin eye area generally fall into which classification of heritability?\",\n        options: [\"Low heritability\", \"Moderate heritability\", \"High heritability\", \"Zero heritability\"],\n        correctAnswer: 2\n    },\n    {\n        question: \"Which breeding strategy utilizes the specific strengths of different breeds (breed complementarity) and maximizes heterosis in the market offspring, where all offspring are sold and none are kept for replacements?\",\n        options: [\"Rotational crossbreeding\", \"Purebreeding\", \"Terminal crossbreeding\", \"Inbreeding\"],\n        correctAnswer: 2\n    },\n    {\n        question: \"According to the genetic progress equation, the expected genetic change per year can be accelerated by doing which of the following?\",\n        options: [\"Decreasing the selection differential\", \"Decreasing the generation interval\", \"Lowering the heritability of the trait\", \"Increasing the generation interval\"],\n        correctAnswer: 1\n    },\n    {\n        question: \"In some genetic interactions, the heterozygous phenotype is a distinct intermediate blend between the two homozygous phenotypes. This phenomenon is known as:\",\n        options: [\"Complete dominance\", \"Codominance\", \"Overdominance\", \"Incomplete dominance\"],\n        correctAnswer: 3\n    },\n    {\n        question: \"In Shorthorn cattle, mating a red coat animal (RR) with a white coat animal (WW) produces offspring with a roan coat (RW), where both red and white hairs are simultaneously and distinctly expressed. This is an example of:\",\n        options: [\"Incomplete dominance\", \"Codominance\", \"Epistasis\", \"Sex-linked inheritance\"],\n        correctAnswer: 1\n    },\n    {\n        question: \"A swine breeder is selecting for weaning weight. If the heritability of weaning weight is 0.30 and the selection differential (the superiority of selected parents over the herd average) is 10 kg, what is the expected genetic progress per generation?\",\n        options: [\"3.0 kg\", \"7.0 kg\", \"10.0 kg\", \"33.3 kg\"],\n        correctAnswer: 0\n    },\n    {\n        question: \"The extreme form of heterosis where the heterozygous individual is superior in performance not just to the parental average, but to both of the homozygous parental lines, is scientifically termed:\",\n        options: [\"Codominance\", \"Overdominance\", \"Incomplete dominance\", \"Epistasis\"],\n        correctAnswer: 1\n    },\n    {\n        question: \"Outcrossing is a common practice utilized by purebred livestock breeders primarily to:\",\n        options: [\"Create a new composite breed\", \"Increase the frequency of homozygous recessive lethal genes\", \"Introduce new genetic material and prevent severe inbreeding depression\", \"Ensure all offspring have identical genotypes\"],\n        correctAnswer: 2\n    },\n    {\n        question: \"Traits that demonstrate a continuous distribution of phenotypes within a population, typically plotting as a bell-shaped normal distribution curve, are highly characteristic of:\",\n        options: [\"Monogenic traits\", \"Qualitative traits\", \"Mendelian traits\", \"Quantitative traits\"],\n        correctAnswer: 3\n    },\n    {\n        question: \"If an animal breeder wishes to make rapid genetic improvement on a highly heritable trait (e.g., backfat thickness in swine), which method of selection is most efficient and directly applicable?\",\n        options: [\"Pedigree selection\", \"Progeny testing\", \"Family selection\", \"Mass (Individual) selection\"],\n        correctAnswer: 3\n    },\n    {\n        question: \"In a random mating population that is in Hardy-Weinberg equilibrium, the frequency of individuals expressing the recessive phenotype is observed to be 0.16. 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Try it here: ${currentUrl}`;\n        \n        if (navigator.share) {\n            navigator.share({\n                title: `${pageTitle} - Agriculture Review Mock Test`,\n                text: shareText,\n                url: currentUrl\n            }).catch(console.error);\n        } else {\n            navigator.clipboard.writeText(shareText).then(() => {\n                alert(`Test link copied to clipboard! Paste it to share your score.\\n\\nPreview:\\n${shareText}`);\n            }).catch(err => {\n                alert(\"Please manually copy the URL to share.\");\n            });\n        }\n    }\n<\/script>\n\n\n\n<p class=\"wp-block-paragraph\"><br><\/p>\n\n\n\n<div class=\"ar-syllabus-container\">\n  <h2><span class=\"ez-toc-section\" id=\"What_topics_are_covered_in_this_Animal_Science_Board_Exam_Reviewer\"><\/span>What topics are covered in this Animal Science Board Exam Reviewer?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n  <p class=\"syllabus-intro\">This specific reviewer is strictly aligned with the <strong>Animal Science<\/strong> module of the official <strong>PRC Licensure Examination for Agriculturists (LEA)<\/strong> syllabus, with a specialized focus on <strong>Animal Breeding and Genetics<\/strong>. By taking this mock test, you are evaluating your mastery of these high-yield core topics:<\/p>\n  \n  <ul class=\"syllabus-list\">\n    <li>\n      <span class=\"check-icon\">\u2705<\/span>\n      <span><strong>Mendelian Principles & Basic Genetics:<\/strong> Covering foundational concepts such as dominant and recessive traits, genetic terminology (alleles, genotype, phenotype), cellular division (mitosis\/meiosis), and predicting outcomes using Punnett squares.<\/span>\n    <\/li>\n    <li>\n      <span class=\"check-icon\">\u2705<\/span>\n      <span><strong>Quantitative & Qualitative Traits:<\/strong> Differentiating between simple discrete traits and continuous polygenic traits, alongside understanding heritability estimates, selection differentials, and expected genetic progress.<\/span>\n    <\/li>\n    <li>\n      <span class=\"check-icon\">\u2705<\/span>\n      <span><strong>Breeding Systems & Mating Strategies:<\/strong> Evaluating the applications and outcomes of various mating systems including inbreeding, linebreeding, outcrossing, and specialized crossbreeding programs (e.g., terminal crosses).<\/span>\n    <\/li>\n    <li>\n      <span class=\"check-icon\">\u2705<\/span>\n      <span><strong>Genetic Interactions & Phenomena:<\/strong> Exploring complex genetic expressions such as incomplete dominance, codominance, epistasis, pleiotropy, sex-linked\/limited traits, and maximizing heterosis (hybrid vigor) in commercial livestock.<\/span>\n    <\/li>\n  <\/ul>\n  \n  <p class=\"syllabus-footer\">Bookmark this page on agriculturereview.com and retake the test until you can consistently score above the 75% passing mark on Animal Science. Good luck, future Agriculturist!<\/p>\n<\/div>\n\n<style>\n  \/* ==========================================================================\n     NATIVE INHERITANCE: SYLLABUS STYLE\n     ========================================================================== *\/\n  .ar-syllabus-container {\n    width: 100%;\n    margin: 40px auto;\n    border-left: 6px solid #2b4d09; \/* Brand Green *\/\n    padding-left: 24px;\n    box-sizing: border-box;\n  }\n\n  .ar-syllabus-container h2 {\n    color: #2b4d09;\n    \/* Inherits theme font family and size properties *\/\n    font-size: 26px; \n    line-height: 1.3;\n    margin-top: 0;\n    margin-bottom: 20px;\n  }\n\n  .syllabus-intro {\n    \/* Inherits theme font family and size properties *\/\n    line-height: inherit;\n    margin-bottom: 30px;\n  }\n\n  .syllabus-list {\n    list-style: none;\n    padding: 0;\n    margin: 0 0 30px 0;\n  }\n\n  .syllabus-list li {\n    margin-bottom: 20px;\n    display: flex;\n    align-items: flex-start;\n    gap: 12px;\n  }\n\n  .check-icon {\n    color: #f7cd0d; \/* Brand Yellow *\/\n    flex-shrink: 0;\n  }\n\n  .syllabus-list span:last-child {\n    \/* Inherits theme font size and family *\/\n    line-height: inherit;\n  }\n\n  .syllabus-footer {\n    border-top: 1px solid #E2E8F0;\n    padding-top: 20px;\n    font-style: italic;\n    font-size: 0.9em; \/* Slightly smaller than body text *\/\n  }\n<\/style>\n","protected":false},"excerpt":{"rendered":"<p>Ready to ace your agriculture exams? Challenge yourself with our ultimate Animal Science Board Exam Reviewer! We&#8217;ve put together 50 high-yield multiple-choice questions covering all things from Animal Breeding &amp; Genetics, complete with a verified answer key. Perfect for your upcoming board exams. Take the mock test today and get a FREE downloadable PDF reviewer &#8230; <a title=\"LEA Board Exam Mock Test: Animal Breeding &amp; Genetics Practice Questions With PDF\" class=\"read-more\" href=\"https:\/\/agriculturereview.com\/hi\/lea-board-exam-mock-test-animal-genetics-mating-systems-practice-questions\/\" aria-label=\"Read more about LEA Board Exam Mock Test: Animal Breeding &amp; Genetics Practice Questions With PDF\">Read more<\/a><\/p>","protected":false},"author":1,"featured_media":22642,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_surecart_dashboard_logo_width":"180px","_surecart_dashboard_show_logo":true,"_surecart_dashboard_navigation_orders":true,"_surecart_dashboard_navigation_invoices":true,"_surecart_dashboard_navigation_subscriptions":true,"_surecart_dashboard_navigation_downloads":true,"_surecart_dashboard_navigation_billing":true,"_surecart_dashboard_navigation_account":true,"footnotes":""},"categories":[6,7352,733,7488],"tags":[7520,7523,7272,7522,7519,7521,7524,7525,7526,7518],"class_list":["post-22632","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-agriculture","category-mock-test","category-quiz","category-reviewer","tag-animal-breeding-and-genetics","tag-animal-science-genetics-questions","tag-animal-science-reviewer","tag-heritability-livestock","tag-heterosis","tag-inbreeding-swine","tag-lea-board-exam","tag-livestock-genetics-mock-test","tag-prc-agriculture-exam","tag-prc-agriculturist-reviewer"],"_links":{"self":[{"href":"https:\/\/agriculturereview.com\/hi\/wp-json\/wp\/v2\/posts\/22632","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/agriculturereview.com\/hi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/agriculturereview.com\/hi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/agriculturereview.com\/hi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/agriculturereview.com\/hi\/wp-json\/wp\/v2\/comments?post=22632"}],"version-history":[{"count":9,"href":"https:\/\/agriculturereview.com\/hi\/wp-json\/wp\/v2\/posts\/22632\/revisions"}],"predecessor-version":[{"id":22643,"href":"https:\/\/agriculturereview.com\/hi\/wp-json\/wp\/v2\/posts\/22632\/revisions\/22643"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/agriculturereview.com\/hi\/wp-json\/wp\/v2\/media\/22642"}],"wp:attachment":[{"href":"https:\/\/agriculturereview.com\/hi\/wp-json\/wp\/v2\/media?parent=22632"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/agriculturereview.com\/hi\/wp-json\/wp\/v2\/categories?post=22632"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/agriculturereview.com\/hi\/wp-json\/wp\/v2\/tags?post=22632"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}