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<\/figure>\n\n\n\nHow to Use This Practice Set<\/h2>\n\n\n\n\n- Attempt each question independently before checking the answer<\/li>\n\n\n\n
- Note every wrong answer \u2014 these point directly to your weak chapters<\/li>\n\n\n\n
- Re-read the relevant NCERT paragraph for every incorrect answer<\/li>\n\n\n\n
- Revisit this set after 5 days to test retention<\/li>\n<\/ul>\n\n\n\n
Section 1: Genetics and Evolution (Most Expected \u2014 12\u201315 Questions in NEET)<\/h2>\n\n\n\n
Q1.<\/strong> Which of the following correctly represents the law of segregation?<\/p>\n\n\n\n\n- A) Two alleles of a gene separate during gamete formation and reunite randomly at fertilisation<\/li>\n\n\n\n
- B) Genes for different traits assort independently<\/li>\n\n\n\n
- C) One allele always dominates over another<\/li>\n\n\n\n
- D) Alleles do not separate during meiosis<\/li>\n<\/ul>\n\n\n\n
Answer: A<\/strong> Mendel’s Law of Segregation \u2014 alleles separate during gamete formation.<\/em><\/p>\n\n\n\n
\n\n\n\nQ2.<\/strong> A cross between a homozygous tall plant (TT) and a homozygous dwarf plant (tt) produces F1 plants. When F1 plants are self-pollinated, the ratio of tall to dwarf plants in F2 is:<\/p>\n\n\n\n\n- A) 1:1<\/li>\n\n\n\n
- B) 3:1<\/li>\n\n\n\n
- C) 1:3<\/li>\n\n\n\n
- D) 2:1<\/li>\n<\/ul>\n\n\n\n
Answer: B<\/strong> Classic monohybrid cross \u2014 F2 phenotypic ratio is 3:1.<\/em><\/p>\n\n\n\n
\n\n\n\nQ3.<\/strong> In which of the following conditions does codominance occur?<\/p>\n\n\n\n\n- A) Tt genotype in Mendel’s pea plants<\/li>\n\n\n\n
- B) ABO blood group system \u2014 genotype IAIB<\/li>\n\n\n\n
- C) Incomplete dominance in snapdragon flower colour<\/li>\n\n\n\n
- D) Homozygous dominant genotype<\/li>\n<\/ul>\n\n\n\n
Answer: B<\/strong> IAIB expresses both A and B antigens equally \u2014 classic codominance.<\/em><\/p>\n\n\n\n
\n\n\n\nQ4.<\/strong> The term ‘mutation’ was coined by:<\/p>\n\n\n\n\n- A) Gregor Mendel<\/li>\n\n\n\n
- B) Hugo de Vries<\/li>\n\n\n\n
- C) Thomas Hunt Morgan<\/li>\n\n\n\n
- D) Francis Crick<\/li>\n<\/ul>\n\n\n\n
Answer: B<\/strong> Hugo de Vries coined the term mutation while working with Oenothera lamarckiana.<\/em><\/p>\n\n\n\n
\n\n\n\nQ5.<\/strong> Which of the following is NOT a characteristic of the genetic code?<\/p>\n\n\n\n\n- A) It is universal<\/li>\n\n\n\n
- B) It is degenerate<\/li>\n\n\n\n
- C) It is overlapping<\/li>\n\n\n\n
- D) It is unambiguous<\/li>\n<\/ul>\n\n\n\n
Answer: C<\/strong> The genetic code is non-overlapping \u2014 each nucleotide belongs to only one codon.<\/em><\/p>\n\n\n\n\n\n\n\n\nBrahmastra RE-NEET Banners<\/title>\n<style>\n #ksq2-root {\n all: initial;\n display: block;\n box-sizing: border-box;\n width: 100%;\n }\n #ksq2-root *,\n #ksq2-root *::before,\n #ksq2-root *::after {\n box-sizing: border-box;\n margin: 0;\n padding: 0;\n }\n #ksq2-root .ksq2-wrap {\n position: relative;\n width: 100%;\n max-width: 900px;\n margin: 0 auto;\n overflow: hidden;\n border-radius: 14px;\n background: #111;\n }\n #ksq2-root .ksq2-slides {\n display: flex;\n transition: transform 0.55s cubic-bezier(.4,0,.2,1);\n will-change: transform;\n }\n #ksq2-root .ksq2-slide {\n min-width: 100%;\n display: block;\n position: relative;\n }\n #ksq2-root .ksq2-slide a {\n display: block;\n text-decoration: none;\n }\n #ksq2-root .ksq2-slide img {\n width: 100%;\n display: block;\n height: auto;\n border: none;\n outline: none;\n }\n #ksq2-root 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background: rgba(0,0,0,0.25);\n border: none;\n cursor: pointer;\n padding: 0;\n display: block;\n transition: background 0.3s, transform 0.2s;\n outline: none;\n }\n #ksq2-root .ksq2-dot.active {\n background: #333;\n transform: scale(1.3);\n }\n<\/style>\n<\/head>\n<body>\n\n<div id=\"ksq2-root\">\n\n <div class=\"ksq2-wrap\" id=\"ksq2Wrap\">\n <div class=\"ksq2-slides\" id=\"ksq2Slides\">\n\n <div class=\"ksq2-slide\">\n <a href=\"https:\/\/courses.ksquare.co.in\/new-courses\/42-brahmastra-re-neet-biology\" rel=\"nofollow noopener\" target=\"_blank\">\n <img decoding=\"async\" src=\"https:\/\/ksquareinstitute.in\/blog\/wp-content\/uploads\/2026\/05\/RE-NEET-2026-BRAHMASTRA-BIOLOGY-scaled.png\" alt=\"BRAHMASTRA RE-NEET Biology\" \/>\n <\/a>\n <\/div>\n\n <div class=\"ksq2-slide\">\n <a href=\"https:\/\/courses.ksquare.co.in\/new-courses\/39-brahmastra-re-neet-chemistry\" rel=\"nofollow noopener\" target=\"_blank\">\n <img decoding=\"async\" src=\"https:\/\/ksquareinstitute.in\/blog\/wp-content\/uploads\/2026\/05\/RE-NEET-2026-BRAHMASTRA-CHEMISTRY-add-scaled.png\" alt=\"BRAHMASTRA RE-NEET Chemistry\" \/>\n <\/a>\n <\/div>\n\n <div class=\"ksq2-slide\">\n <a href=\"https:\/\/courses.ksquare.co.in\/new-courses\/38-brahmastra-re-neet-physics\" rel=\"nofollow noopener\" target=\"_blank\">\n <img decoding=\"async\" src=\"https:\/\/ksquareinstitute.in\/blog\/wp-content\/uploads\/2026\/05\/RE-NEET-2026-BRAHMASTRA-NEET-PHYSICS-add-scaled.png\" alt=\"BRAHMASTRA RE-NEET Physics\" \/>\n <\/a>\n <\/div>\n\n <\/div>\n <div class=\"ksq2-progress\" id=\"ksq2Progress\"><\/div>\n <button class=\"ksq2-nav ksq2-prev\" aria-label=\"Previous slide\">‹<\/button>\n <button class=\"ksq2-nav ksq2-next\" aria-label=\"Next slide\">›<\/button>\n <\/div>\n\n <div class=\"ksq2-dots\" id=\"ksq2Dots\">\n <button class=\"ksq2-dot active\" aria-label=\"Slide 1\"><\/button>\n <button class=\"ksq2-dot\" aria-label=\"Slide 2\"><\/button>\n <button class=\"ksq2-dot\" aria-label=\"Slide 3\"><\/button>\n <\/div>\n\n<\/div>\n\n<script>\n(function () {\n var slidesEl = document.getElementById('ksq2Slides');\n var progressEl = document.getElementById('ksq2Progress');\n var dots = document.querySelectorAll('#ksq2Dots .ksq2-dot');\n var wrapEl = document.getElementById('ksq2Wrap');\n var total = 3;\n var duration = 5000;\n var current = 0;\n var startTime = null;\n var rafId = null;\n var paused = false;\n\n function goTo(n) {\n current = (n + total) % total;\n slidesEl.style.transform = 'translateX(-' + (current * 100) + '%)';\n dots.forEach(function (d, i) {\n d.classList.toggle('active', i === current);\n });\n resetProgress();\n }\n\n function resetProgress() {\n progressEl.style.width = '0%';\n startTime = null;\n if (rafId) cancelAnimationFrame(rafId);\n if (!paused) rafId = requestAnimationFrame(tick);\n }\n\n function tick(ts) {\n if (!startTime) startTime = ts;\n var elapsed = ts - startTime;\n var pct = Math.min(elapsed \/ duration * 100, 100);\n progressEl.style.width = pct + '%';\n if (elapsed >= duration) { goTo(current + 1); return; }\n rafId = requestAnimationFrame(tick);\n }\n\n document.querySelector('#ksq2Wrap .ksq2-prev').addEventListener('click', function () { goTo(current - 1); });\n document.querySelector('#ksq2Wrap .ksq2-next').addEventListener('click', function () { goTo(current + 1); });\n dots.forEach(function (d, i) { d.addEventListener('click', function () { goTo(i); }); });\n\n wrapEl.addEventListener('mouseenter', function () {\n paused = true;\n cancelAnimationFrame(rafId);\n });\n wrapEl.addEventListener('mouseleave', function () {\n paused = false;\n var elapsed = parseFloat(progressEl.style.width) \/ 100 * duration;\n startTime = null;\n rafId = requestAnimationFrame(function (ts) {\n startTime = ts - elapsed;\n tick(ts);\n });\n });\n\n rafId = requestAnimationFrame(tick);\n})();\n<\/script>\n\n<\/body>\n<\/html>\n\n\n\n<p><strong>Q6.<\/strong> Sickle cell anaemia is caused by a point mutation that substitutes:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Glutamic acid with Valine at position 6 of beta-globin chain<\/li>\n\n\n\n<li>B) Valine with Glutamic acid at position 6 of alpha-globin chain<\/li>\n\n\n\n<li>C) Lysine with Valine at position 6 of beta-globin chain<\/li>\n\n\n\n<li>D) Glutamic acid with Alanine at position 6 of beta-globin chain<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: A<\/strong> <em>Glutamic acid \u2192 Valine substitution at position 6 of the beta-globin chain causes sickle cell anaemia.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q7.<\/strong> Which evolutionary concept is demonstrated by the presence of analogous organs in different species?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Divergent evolution<\/li>\n\n\n\n<li>B) Convergent evolution<\/li>\n\n\n\n<li>C) Co-evolution<\/li>\n\n\n\n<li>D) Microevolution<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: B<\/strong> <em>Analogous organs indicate convergent evolution \u2014 similar function, different origin.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q8.<\/strong> The connecting link between Reptilia and Aves is:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Platypus<\/li>\n\n\n\n<li>B) Archaeopteryx<\/li>\n\n\n\n<li>C) Dodo<\/li>\n\n\n\n<li>D) Lungfish<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: B<\/strong> <em>Archaeopteryx showed features of both reptiles (teeth, clawed wings) and birds (feathers).<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Section 2: Human Physiology (14\u201318 Questions Expected)<\/h2>\n\n\n\n<p><strong>Q9.<\/strong> Which enzyme initiates protein digestion in the stomach?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Trypsin<\/li>\n\n\n\n<li>B) Pepsin<\/li>\n\n\n\n<li>C) Erepsin<\/li>\n\n\n\n<li>D) Lipase<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: B<\/strong> <em>Pepsin, activated from pepsinogen by HCl, begins protein digestion in the stomach.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q10.<\/strong> The correct sequence of events during muscle contraction according to the sliding filament theory is:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Ca\u00b2\u207a release \u2192 myosin head binds actin \u2192 ATP hydrolysis \u2192 power stroke<\/li>\n\n\n\n<li>B) ATP hydrolysis \u2192 Ca\u00b2\u207a release \u2192 actin binds myosin \u2192 power stroke<\/li>\n\n\n\n<li>C) Power stroke \u2192 Ca\u00b2\u207a release \u2192 myosin binds actin \u2192 ATP hydrolysis<\/li>\n\n\n\n<li>D) Ca\u00b2\u207a release \u2192 ATP hydrolysis \u2192 actin slides \u2192 troponin inhibition<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: A<\/strong> <em>Ca\u00b2\u207a released from sarcoplasmic reticulum triggers tropomyosin shift, allowing myosin-actin binding and power stroke.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q11.<\/strong> What is the oxygen-carrying capacity of one gram of haemoglobin?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) 1.2 mL<\/li>\n\n\n\n<li>B) 1.34 mL<\/li>\n\n\n\n<li>C) 2.0 mL<\/li>\n\n\n\n<li>D) 0.98 mL<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: B<\/strong> <em>One gram of haemoglobin carries 1.34 mL of oxygen \u2014 a frequently tested NCERT fact.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q12.<\/strong> Which part of the nephron is impermeable to water but permeable to electrolytes?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Proximal Convoluted Tubule<\/li>\n\n\n\n<li>B) Descending limb of loop of Henle<\/li>\n\n\n\n<li>C) Ascending limb of loop of Henle<\/li>\n\n\n\n<li>D) Collecting duct<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: C<\/strong> <em>The ascending limb of loop of Henle is impermeable to water but allows electrolyte reabsorption.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q13.<\/strong> The pacemaker of the human heart is:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) AV node<\/li>\n\n\n\n<li>B) Bundle of His<\/li>\n\n\n\n<li>C) SA node<\/li>\n\n\n\n<li>D) Purkinje fibres<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: C<\/strong> <em>The Sino-Atrial (SA) node generates the impulse that initiates heartbeat \u2014 it is the pacemaker.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q14.<\/strong> Which hormone is responsible for the ‘fight or flight’ response?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Thyroxine<\/li>\n\n\n\n<li>B) Insulin<\/li>\n\n\n\n<li>C) Adrenaline (Epinephrine)<\/li>\n\n\n\n<li>D) Cortisol<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: C<\/strong> <em>Adrenaline, secreted by the adrenal medulla, triggers the fight or flight response.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q15.<\/strong> The functional unit of the kidney is the:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Glomerulus<\/li>\n\n\n\n<li>B) Nephron<\/li>\n\n\n\n<li>C) Bowman’s capsule<\/li>\n\n\n\n<li>D) Loop of Henle<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: B<\/strong> <em>The nephron is the structural and functional unit of the kidney.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q16.<\/strong> Which of the following is correctly matched?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Rods \u2014 colour vision<\/li>\n\n\n\n<li>B) Cones \u2014 dim light vision<\/li>\n\n\n\n<li>C) Rods \u2014 dim light vision<\/li>\n\n\n\n<li>D) Cones \u2014 peripheral vision<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: C<\/strong> <em>Rods contain rhodopsin and function in low-light (dim) vision. Cones handle colour and bright-light vision.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Section 3: Molecular Biology \u2014 DNA Replication, Transcription, Translation<\/h2>\n\n\n\n<p><strong>Q17.<\/strong> The enzyme responsible for relieving the tension ahead of the replication fork during DNA replication is:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) DNA Ligase<\/li>\n\n\n\n<li>B) Helicase<\/li>\n\n\n\n<li>C) Topoisomerase<\/li>\n\n\n\n<li>D) Primase<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: C<\/strong> <em>Topoisomerase cuts and rejoins DNA strands to relieve torsional stress ahead of the replication fork.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q18.<\/strong> Which of the following RNA types acts as an adapter molecule during translation?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) mRNA<\/li>\n\n\n\n<li>B) rRNA<\/li>\n\n\n\n<li>C) tRNA<\/li>\n\n\n\n<li>D) snRNA<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: C<\/strong> <em>tRNA carries amino acids and matches codons on mRNA through its anticodon \u2014 it is the adapter molecule.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q19.<\/strong> The lac operon model was proposed by:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Watson and Crick<\/li>\n\n\n\n<li>B) Jacob and Monod<\/li>\n\n\n\n<li>C) Hershey and Chase<\/li>\n\n\n\n<li>D) Meselson and Stahl<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: B<\/strong> <em>Jacob and Monod proposed the lac operon model of gene regulation in E. coli in 1961.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q20.<\/strong> Which experiment proved that DNA is the genetic material in bacteriophage?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Griffith’s experiment<\/li>\n\n\n\n<li>B) Avery, MacLeod and McCarty experiment<\/li>\n\n\n\n<li>C) Hershey-Chase experiment<\/li>\n\n\n\n<li>D) Meselson-Stahl experiment<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: C<\/strong> <em>Hershey and Chase used radioactive isotopes (\u00b3\u00b2P and \u00b3\u2075S) to prove DNA is the genetic material in T2 phage.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Section 4: Plant Physiology<\/h2>\n\n\n\n<p><strong>Q21.<\/strong> Which of the following is the correct site of photosystem I and photosystem II?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Stroma \u2014 PS I, Grana \u2014 PS II<\/li>\n\n\n\n<li>B) Grana \u2014 PS I and PS II both<\/li>\n\n\n\n<li>C) PS II on grana thylakoids, PS I on stroma lamellae<\/li>\n\n\n\n<li>D) Stroma \u2014 PS I and PS II both<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: C<\/strong> <em>PS II is located on grana thylakoids; PS I is on stroma lamellae (stroma thylakoids).<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q22.<\/strong> Which plant hormone is known as the ‘stress hormone’?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Gibberellin<\/li>\n\n\n\n<li>B) Cytokinin<\/li>\n\n\n\n<li>C) Ethylene<\/li>\n\n\n\n<li>D) Abscisic Acid (ABA)<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: D<\/strong> <em>ABA is called the stress hormone \u2014 it promotes stomatal closure during water stress.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q23.<\/strong> The C4 pathway (Hatch-Slack cycle) has its primary CO\u2082 fixation in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Bundle sheath cells<\/li>\n\n\n\n<li>B) Mesophyll cells<\/li>\n\n\n\n<li>C) Guard cells<\/li>\n\n\n\n<li>D) Epidermal cells<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: B<\/strong> <em>In C4 plants, CO\u2082 is initially fixed in mesophyll cells by PEP carboxylase, forming oxaloacetate (OAA).<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q24.<\/strong> Photoperiodism was first studied in which plant?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Tobacco (Nicotiana tabacum)<\/li>\n\n\n\n<li>B) Xanthium<\/li>\n\n\n\n<li>C) Hyoscyamus<\/li>\n\n\n\n<li>D) Arabidopsis<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: A<\/strong> <em>Garner and Allard first studied photoperiodism in Nicotiana tabacum (Maryland Mammoth).<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q25.<\/strong> Which of the following is a long-day plant?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Chrysanthemum<\/li>\n\n\n\n<li>B) Xanthium<\/li>\n\n\n\n<li>C) Henbane (Hyoscyamus niger)<\/li>\n\n\n\n<li>D) Tobacco (Maryland Mammoth)<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: C<\/strong> <em>Henbane (Hyoscyamus niger) requires long days (short nights) to flower \u2014 it is a long-day plant.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Section 5: Cell Biology and Cell Division<\/h2>\n\n\n\n<p><strong>Q26.<\/strong> Which phase of meiosis is the longest?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Metaphase I<\/li>\n\n\n\n<li>B) Anaphase II<\/li>\n\n\n\n<li>C) Prophase I<\/li>\n\n\n\n<li>D) Telophase I<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: C<\/strong> <em>Prophase I is the longest phase of meiosis, subdivided into Leptotene, Zygotene, Pachytene, Diplotene, and Diakinesis.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q27.<\/strong> The powerhouse of the cell is:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Nucleus<\/li>\n\n\n\n<li>B) Ribosome<\/li>\n\n\n\n<li>C) Mitochondria<\/li>\n\n\n\n<li>D) Golgi apparatus<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: C<\/strong> <em>Mitochondria produce ATP through oxidative phosphorylation \u2014 they are the powerhouse of the cell.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q28.<\/strong> Which of the following is correct about the fluid mosaic model of the cell membrane?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Proteins are immobile within the lipid bilayer<\/li>\n\n\n\n<li>B) Lipids form a monolayer with proteins on the outside<\/li>\n\n\n\n<li>C) Proteins float within a fluid phospholipid bilayer<\/li>\n\n\n\n<li>D) Carbohydrates form the core of the membrane<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: C<\/strong> <em>The fluid mosaic model (Singer and Nicolson, 1972) describes proteins floating in a fluid phospholipid bilayer.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q29.<\/strong> Ribosomes are the sites of:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Transcription<\/li>\n\n\n\n<li>B) Replication<\/li>\n\n\n\n<li>C) Translation<\/li>\n\n\n\n<li>D) Post-translational modification<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: C<\/strong> <em>Ribosomes are the molecular machines where mRNA is translated into proteins.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q30.<\/strong> Which of the following organelles is absent in prokaryotes?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Ribosome<\/li>\n\n\n\n<li>B) Cell membrane<\/li>\n\n\n\n<li>C) Mitochondria<\/li>\n\n\n\n<li>D) Cell wall<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: C<\/strong> <em>Prokaryotes lack membrane-bound organelles including mitochondria, endoplasmic reticulum, and Golgi apparatus.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Section 6: Ecology and Environment<\/h2>\n\n\n\n<p><strong>Q31.<\/strong> Which of the following represents a correct food chain?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Hawk \u2192 Snake \u2192 Frog \u2192 Grasshopper \u2192 Grass<\/li>\n\n\n\n<li>B) Grass \u2192 Grasshopper \u2192 Frog \u2192 Snake \u2192 Hawk<\/li>\n\n\n\n<li>C) Grass \u2192 Frog \u2192 Grasshopper \u2192 Snake \u2192 Hawk<\/li>\n\n\n\n<li>D) Grasshopper \u2192 Grass \u2192 Frog \u2192 Snake \u2192 Hawk<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: B<\/strong> <em>Energy flows from producers (Grass) to primary consumers (Grasshopper) upward through the trophic levels.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q32.<\/strong> The 10% energy transfer law in an ecosystem was given by:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Lindeman<\/li>\n\n\n\n<li>B) Odum<\/li>\n\n\n\n<li>C) Tansley<\/li>\n\n\n\n<li>D) Elton<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: A<\/strong> <em>Raymond Lindeman proposed the 10% law \u2014 only 10% of energy is transferred from one trophic level to the next.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q33.<\/strong> Which biome has the highest biodiversity?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Temperate deciduous forest<\/li>\n\n\n\n<li>B) Tropical rainforest<\/li>\n\n\n\n<li>C) Savanna grassland<\/li>\n\n\n\n<li>D) Coral reef<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: B<\/strong> <em>Tropical rainforests have the highest species diversity due to year-round warmth and rainfall.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q34.<\/strong> The concept of the ecological niche was introduced by:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Charles Darwin<\/li>\n\n\n\n<li>B) G. Evelyn Hutchinson<\/li>\n\n\n\n<li>C) Eugene Odum<\/li>\n\n\n\n<li>D) Robert MacArthur<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: B<\/strong> <em>G. Evelyn Hutchinson introduced the modern n-dimensional hypervolume concept of an ecological niche.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q35.<\/strong> Which of the following is a greenhouse gas?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Nitrogen (N\u2082)<\/li>\n\n\n\n<li>B) Oxygen (O\u2082)<\/li>\n\n\n\n<li>C) Methane (CH\u2084)<\/li>\n\n\n\n<li>D) Argon (Ar)<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: C<\/strong> <em>Methane (CH\u2084), carbon dioxide (CO\u2082), and nitrous oxide (N\u2082O) are major greenhouse gases.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Section 7: Biotechnology<\/h2>\n\n\n\n<p><strong>Q36.<\/strong> The enzyme used to join two DNA fragments in recombinant DNA technology is:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Helicase<\/li>\n\n\n\n<li>B) DNA Ligase<\/li>\n\n\n\n<li>C) Restriction Endonuclease<\/li>\n\n\n\n<li>D) DNA Polymerase<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: B<\/strong> <em>DNA Ligase forms phosphodiester bonds between DNA fragments \u2014 it is the “molecular glue” in recombinant DNA technology.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q37.<\/strong> The first genetically engineered insulin was produced using:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Saccharomyces cerevisiae<\/li>\n\n\n\n<li>B) Escherichia coli<\/li>\n\n\n\n<li>C) Agrobacterium tumefaciens<\/li>\n\n\n\n<li>D) Bacillus thuringiensis<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: B<\/strong> <em>Eli Lilly produced the first recombinant human insulin (Humulin) using E. coli in 1982.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q38.<\/strong> Bt toxin, used in Bt cotton, is derived from:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Bacillus subtilis<\/li>\n\n\n\n<li>B) Agrobacterium tumefaciens<\/li>\n\n\n\n<li>C) Bacillus thuringiensis<\/li>\n\n\n\n<li>D) Pseudomonas fluorescens<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: C<\/strong> <em>The cry genes from Bacillus thuringiensis encode Bt toxin, which is toxic to specific insect larvae.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q39.<\/strong> PCR (Polymerase Chain Reaction) was developed by:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Watson and Crick<\/li>\n\n\n\n<li>B) Kary Mullis<\/li>\n\n\n\n<li>C) Frederick Sanger<\/li>\n\n\n\n<li>D) Paul Berg<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: B<\/strong> <em>Kary Mullis developed PCR in 1983 and was awarded the Nobel Prize in Chemistry in 1993.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q40.<\/strong> The Ti plasmid used in plant genetic engineering is found in:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Bacillus thuringiensis<\/li>\n\n\n\n<li>B) Rhizobium leguminosarum<\/li>\n\n\n\n<li>C) Agrobacterium tumefaciens<\/li>\n\n\n\n<li>D) Escherichia coli<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: C<\/strong> <em>Agrobacterium tumefaciens carries the Ti (tumour-inducing) plasmid used as a vector in plant transformation.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Section 8: Reproduction in Plants and Animals<\/h2>\n\n\n\n<p><strong>Q41.<\/strong> Which of the following is NOT a feature of wind-pollinated flowers?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Large, feathery stigma<\/li>\n\n\n\n<li>B) Light, non-sticky pollen<\/li>\n\n\n\n<li>C) Bright coloured petals<\/li>\n\n\n\n<li>D) Single ovule per flower<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: C<\/strong> <em>Wind-pollinated flowers are generally dull-coloured and small \u2014 bright petals are features of insect-pollinated flowers.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q42.<\/strong> The correct sequence of embryonic development is:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Zygote \u2192 Morula \u2192 Blastula \u2192 Gastrula<\/li>\n\n\n\n<li>B) Zygote \u2192 Blastula \u2192 Morula \u2192 Gastrula<\/li>\n\n\n\n<li>C) Zygote \u2192 Gastrula \u2192 Morula \u2192 Blastula<\/li>\n\n\n\n<li>D) Morula \u2192 Zygote \u2192 Blastula \u2192 Gastrula<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: A<\/strong> <em>Zygote \u2192 Morula (solid ball) \u2192 Blastula (hollow ball) \u2192 Gastrula (three germ layers).<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q43.<\/strong> The acrosome of a sperm contains:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Mitochondria<\/li>\n\n\n\n<li>B) Nucleus<\/li>\n\n\n\n<li>C) Hydrolytic enzymes<\/li>\n\n\n\n<li>D) Flagellum proteins<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: C<\/strong> <em>The acrosome contains hydrolytic enzymes (including hyaluronidase) that help the sperm penetrate the egg.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q44.<\/strong> Which of the following contraceptive methods has the highest efficiency?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Condoms<\/li>\n\n\n\n<li>B) Cervical cap<\/li>\n\n\n\n<li>C) Combined oral contraceptive pills<\/li>\n\n\n\n<li>D) Copper-T IUD<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: C<\/strong> <em>Combined oral contraceptive pills (OCPs) have ~99% efficiency when used correctly, making them the most effective among these options.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q45.<\/strong> Where does fertilisation normally occur in the human female reproductive system?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Uterus<\/li>\n\n\n\n<li>B) Ovary<\/li>\n\n\n\n<li>C) Fallopian tube (Ampullary-isthmic junction)<\/li>\n\n\n\n<li>D) Cervix<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: C<\/strong> <em>Fertilisation typically occurs at the ampullary-isthmic junction of the fallopian tube.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Section 9: Biological Classification and Diversity<\/h2>\n\n\n\n<p><strong>Q46.<\/strong> Which of the following is a correct characteristic of Kingdom Fungi?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Autotrophic nutrition<\/li>\n\n\n\n<li>B) Presence of chlorophyll<\/li>\n\n\n\n<li>C) Cell walls made of chitin<\/li>\n\n\n\n<li>D) Prokaryotic cell organisation<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: C<\/strong> <em>Fungi have cell walls made of chitin \u2014 they are heterotrophic, eukaryotic, and lack chlorophyll.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q47.<\/strong> Who proposed the five-kingdom classification?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Carolus Linnaeus<\/li>\n\n\n\n<li>B) Ernst Haeckel<\/li>\n\n\n\n<li>C) R.H. Whittaker<\/li>\n\n\n\n<li>D) Carl Woese<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: C<\/strong> <em>R.H. Whittaker proposed the five-kingdom classification in 1969 \u2014 Monera, Protista, Fungi, Plantae, Animalia.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q48.<\/strong> Which of the following is NOT a characteristic of viruses?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) They can replicate only inside a host cell<\/li>\n\n\n\n<li>B) They contain either DNA or RNA, never both<\/li>\n\n\n\n<li>C) They have their own ribosomes<\/li>\n\n\n\n<li>D) They are obligate intracellular parasites<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: C<\/strong> <em>Viruses do not have ribosomes \u2014 they hijack the host cell’s ribosomes for protein synthesis.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q49.<\/strong> The antibiotic penicillin is obtained from:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Streptomyces griseus<\/li>\n\n\n\n<li>B) Penicillium notatum<\/li>\n\n\n\n<li>C) Aspergillus niger<\/li>\n\n\n\n<li>D) Rhizopus stolonifer<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: B<\/strong> <em>Penicillin was discovered by Alexander Fleming from Penicillium notatum (now classified as P. chrysogenum).<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<p><strong>Q50.<\/strong> Which of the following is the correct example of a vestigial organ in humans?<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A) Appendix<\/li>\n\n\n\n<li>B) Thumb<\/li>\n\n\n\n<li>C) Femur<\/li>\n\n\n\n<li>D) Cornea<\/li>\n<\/ul>\n\n\n\n<p><strong>Answer: A<\/strong> <em>The vermiform appendix is a classic example of a vestigial organ in humans \u2014 it has lost its original digestive function through evolution.<\/em><\/p>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h2 class=\"wp-block-heading\">Chapter-Wise Distribution of These 50 MCQs<\/h2>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Chapter \/ Topic<\/th><th>Questions Covered<\/th><th>NEET Weightage<\/th><\/tr><\/thead><tbody><tr><td>Genetics and Evolution<\/td><td>Q1\u2013Q8<\/td><td>~12\u201315 questions<\/td><\/tr><tr><td>Human Physiology<\/td><td>Q9\u2013Q16<\/td><td>~14\u201318 questions<\/td><\/tr><tr><td>Molecular Biology<\/td><td>Q17\u2013Q20<\/td><td>~6\u20138 questions<\/td><\/tr><tr><td>Plant Physiology<\/td><td>Q21\u2013Q25<\/td><td>~6\u20138 questions<\/td><\/tr><tr><td>Cell Biology<\/td><td>Q26\u2013Q30<\/td><td>~5\u20137 questions<\/td><\/tr><tr><td>Ecology<\/td><td>Q31\u2013Q35<\/td><td>~7\u20139 questions<\/td><\/tr><tr><td>Biotechnology<\/td><td>Q36\u2013Q40<\/td><td>~5\u20137 questions<\/td><\/tr><tr><td>Reproduction<\/td><td>Q41\u2013Q45<\/td><td>~5\u20137 questions<\/td><\/tr><tr><td>Classification & Diversity<\/td><td>Q46\u2013Q50<\/td><td>~4\u20136 questions<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">What to Do After Attempting These MCQs<\/h2>\n\n\n\n<p><strong>Scored 40\u201350 correct:<\/strong> Your Biology foundation is strong. Focus on NCERT exception-based questions and diagram-based MCQs in the final stretch. Check our <a href=\"https:\/\/ksquareinstitute.in\/blog\/re-neet-2026-complete-study-plan\">40-day Re-NEET 2026 study plan<\/a> to pace your remaining revision.<\/p>\n\n\n\n<p><strong>Scored 25\u201339 correct:<\/strong> You have a solid base but clear chapter-wise gaps. Note every wrong answer, identify the chapters, and spend the next 3\u20134 days doing a focused NCERT re-read of those specific chapters.<\/p>\n\n\n\n<p><strong>Scored below 25:<\/strong> Biology needs urgent attention. Prioritise Genetics, Human Physiology, and Ecology \u2014 these three alone account for roughly 35\u201340 questions in NEET. Do not spread across all chapters. If you scored below 350 in NEET 2026 and Biology is your weak point, read our guide on <a href=\"https:\/\/ksquareinstitute.in\/blog\/scored-below-350-in-neet-2026\">what Re-NEET 2026 means for low scorers<\/a>.<\/p>\n\n\n\n<p>For a subject-wise deep dive into Chemistry and Physics as well, check out our <a href=\"https:\/\/ksquareinstitute.in\/blog\/re-neet-2026-chemistry-best-strategy\">Re-NEET 2026 Chemistry strategy<\/a> and <a href=\"https:\/\/ksquareinstitute.in\/blog\/re-neet-2026-physics-preparation-strategy\">Re-NEET 2026 Physics preparation<\/a> guides.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">FAQ: Re-NEET 2026 Biology MCQs<\/h2>\n\n\n\n<p><strong>Q1. Which chapters are most important for Re-NEET 2026 Biology?<\/strong> Genetics and Evolution, Human Physiology, Molecular Biology, Ecology, and Biotechnology are the highest-weightage chapters. Together they contribute approximately 60\u201365% of the Biology questions in NEET.<\/p>\n\n\n\n<p><strong>Q2. How many Biology questions are there in NEET 2026?<\/strong> Biology has 100 questions in NEET UG \u2014 50 from Botany and 50 from Zoology \u2014 carrying a total of 360 marks (4 marks each).<\/p>\n\n\n\n<p><strong>Q3. Are these MCQs based on NCERT?<\/strong> Yes. All 50 questions in this set are strictly NCERT-based, reflecting the exact type of questions NTA asks in NEET. No question in this set goes beyond NCERT scope.<\/p>\n\n\n\n<p><strong>Q4. How many Biology questions should I aim to attempt correctly in Re-NEET 2026?<\/strong> For a 600+ total score, you need approximately 280\u2013300 marks from Biology (70\u201375 correct out of 100). For a 650+ score, aim for 310\u2013330 marks from Biology.<\/p>\n\n\n\n<p><strong>Q5. Will Re-NEET 2026 Biology be tougher than the original exam?<\/strong> Most experts expect the Re-NEET 2026 Biology section to be of similar or slightly higher difficulty. Expect more application-based and exception-based questions rather than straightforward recall. Thorough NCERT reading remains the best preparation strategy.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>If you are looking for Re-NEET 2026 Biology MCQs to sharpen your preparation before June 21, this is the resource you need. Biology carries 360 out of 720 marks in NEET \u2014 it is the single highest-scoring section and the one that separates average scores from 600+ scores. These 50 most expected questions for Re-NEET […]<\/p>\n","protected":false},"author":1,"featured_media":5581,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[68,2,8],"tags":[2051,2053,2049,2050,2054,1969,2048,2052],"class_list":["post-5580","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-biology","category-neet","category-study-tips","tag-most-expected-questions-re-neet-2026-biology","tag-neet-2026-biology-important-questions","tag-neet-biology-mcqs-2026","tag-neet-genetics-questions-2026","tag-neet-human-physiology-mcqs","tag-re-neet-2026","tag-re-neet-2026-biology-mcqs","tag-re-neet-2026-biology-practice-questions"],"blocksy_meta":{"page_structure_type":"type-1","styles_descriptor":{"styles":{"desktop":"","tablet":"","mobile":""},"google_fonts":[],"version":6}},"_links":{"self":[{"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/posts\/5580","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/comments?post=5580"}],"version-history":[{"count":1,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/posts\/5580\/revisions"}],"predecessor-version":[{"id":5582,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/posts\/5580\/revisions\/5582"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/media\/5581"}],"wp:attachment":[{"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/media?parent=5580"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/categories?post=5580"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ksquareinstitute.in\/blog\/wp-json\/wp\/v2\/tags?post=5580"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
Section 1: Genetics and Evolution (Most Expected \u2014 12\u201315 Questions in NEET)<\/h2>\n\n\n\n
Q1.<\/strong> Which of the following correctly represents the law of segregation?<\/p>\n\n\n\n Answer: A<\/strong> Mendel’s Law of Segregation \u2014 alleles separate during gamete formation.<\/em><\/p>\n\n\n\n Q2.<\/strong> A cross between a homozygous tall plant (TT) and a homozygous dwarf plant (tt) produces F1 plants. When F1 plants are self-pollinated, the ratio of tall to dwarf plants in F2 is:<\/p>\n\n\n\n Answer: B<\/strong> Classic monohybrid cross \u2014 F2 phenotypic ratio is 3:1.<\/em><\/p>\n\n\n\n Q3.<\/strong> In which of the following conditions does codominance occur?<\/p>\n\n\n\n Answer: B<\/strong> IAIB expresses both A and B antigens equally \u2014 classic codominance.<\/em><\/p>\n\n\n\n Q4.<\/strong> The term ‘mutation’ was coined by:<\/p>\n\n\n\n Answer: B<\/strong> Hugo de Vries coined the term mutation while working with Oenothera lamarckiana.<\/em><\/p>\n\n\n\n Q5.<\/strong> Which of the following is NOT a characteristic of the genetic code?<\/p>\n\n\n\n Answer: C<\/strong> The genetic code is non-overlapping \u2014 each nucleotide belongs to only one codon.<\/em><\/p>\n\n\n\n\n\n\n\n\n\n
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