Class-12 Biology Ch-7 Evolution MCQs Exam 2027 New

💁 Ankit Raj

📅 27/02/2026

Class-12 Biology Ch-7 Evolution MCQs Exam 2027

Class-12 Biology Ch-7 Evolution MCQs Exam 2027 Details: नीचे दिए गए सभी Questions Bihar Board परीक्षा 2027 के लिए “Very Very Important Multiple Choice Questions (MCQs) Objective” (अत्यंत महत्वपूर्ण प्रश्न) हैं। इन सभी Class 12th Biology /जीवविज्ञान ) = जीवविज्ञान भाग-1 (English Medium) Book Chapter-7 Evolution का Questions का Solve का वीडियो Youtube और Website पर Upload किया है।

Class-12 Biology Ch-7 Evolution MCQs Exam 2027

Topic 1: Evolution

  1. Where were Darwin’s Finches found? [2016A]

    (A) In India

    (B) In Africa

    (C) In Galapagos Island Group

    (D) In Australia

  2. The cranial capacity of Java Ape-man was: [2023A]

    (A) 900 c.c.

    (B) 1075 c.c.

    (C) 1450 c.c.

    (D) 1660 c.c.

  3. Which is considered as the ‘Connecting link’ between birds and reptiles? [2020A]

    (A) Dodo

    (B) Archaeopteryx

    (C) Platypus

    (D) Peripatus

  4. The theory of origin of life was proposed by: [2018A]

    (A) Oparin

    (B) Haldane

    (C) Miller

    (D) None of these

  5. What do Homologous organs exhibit? [2022A]

    (A) Convergent evolution

    (B) Divergent Evolution

    (C) Parallel evolution

    (D) None of these

  6. Paleontological evidence is based on the study of: [2024A]

    (A) Embryonic development

    (B) Comparative anatomy

    (C) Fossils

    (D) Divergent evolution

  7. Human beings belong to which Order and which Family? [2020A]

    (A) Anthropoidea and Pongidae

    (B) Primates and Pongidae

    (C) Primates and Hominidae

    (D) None of these

  8. Which of the following was absent in Miller’s experiment? [2021A]

    (A) $CH_4$

    (B) $NH_3$

    (C) $O_2$

    (D) $H_2$

  9. During which period were Dinosaurs present?

    (A) Paleozoic era

    (B) Precambrian era

    (C) Cenozoic era

    (D) Mesozoic era

  10. Who wrote the book ‘Origin of Species’? [2015A]

    (A) Charles Darwin

    (B) Lamarck

    (C) Oparin

    (D) Wallace

  11. The First living organisms were: [2015A]

    (A) Autotrophs

    (B) Chemoheterotrophs

    (C) Photoautotrophs

    (D) None of these

  12. What was the cranial capacity of Homo habilis? [2022A]

    (A) 650-800 c.c.

    (B) 900 c.c.

    (C) 1400 c.c.

    (D) 1660 c.c.

  13. Dodo is a/an: [2021A]

    (A) Extinct species

    (B) Endangered species

    (C) Threatened species

    (D) None of these

  14. Which gases were used by Stanley Miller in his experiment?

    (A) $CH_4, NH_3, H_2, H_2O$

    (B) $CO_2, NH_3, H_2, H_2O$

    (C) $CH_4, N_2, H_2, O_2$

    (D) $CH_4, CO_2, N_2, H_2O$

  15. Dryopithecus was more similar to: [2020A]

    (A) Apes

    (B) Gorilla

    (C) Chimpanzee

    (D) Humans

  16. ‘Genetic Drift’ brings changes in which population? [2021A]

    (A) Large population

    (B) Small population

    (C) Island population

    (D) Both (B) and (C)

  17. Who first gave the idea of ‘Survival of the fittest’? [2023A]

    (A) Darwin

    (B) Herbert Spencer

    (C) Lamarck

    (D) Hugo de Vries

  18. Fossils are generally found in: [2020A]

    (A) Metamorphic rock

    (B) Igneous rock

    (C) Sedimentary rock

    (D) All of these

  19. What is the scientific name of modern man? [2016A]

    (A) Homo habilis

    (B) Homo erectus

    (C) Homo sapiens

    (D) None of these

  20. Who gave the theory of Mutation? [2019A]

    (A) Charles Darwin

    (B) Hugo de Vries

    (C) Lamarck

    (D) Beadle and Tatum

  21. Coacervates were experimentally produced by:

    (A) Oparin and Sidney Fox

    (B) Miller and Harold

    (C) Oparin and Haldane

    (D) Urey and Miller

  22. The age of human evolution is measured by: [2022A]

    (A) UV radiation

    (B) Carbon dating

    (C) Chemical reaction

    (D) Radioactive dating

  23. In which book did Oparin and Haldane present their views? [2017A]

    (A) Genetics and Origin of Species

    (B) Origin of Life

    (C) Philosophie Zoologique

    (D) None of these

  24. Darwin’s Finches represent which evidence? [2015A]

    (A) Embryological evidence

    (B) Fossil evidence

    (C) Biogeographical distribution

    (D) All of these

  25. In “Population Genetics”, which equation represents genetic equilibrium?

    (A) $(p+q)^2 = p^2 + 2pq + q^2$

    (B) $(p+q)^2 = p^2 + q^2$

    (C) $p+q = 2pq$

    (D) None

  26. Adaptive radiation of Australian marsupials is an example of: [2018A]

    (A) Divergent evolution

    (B) Convergent evolution (Note: When comparing to placental mammals)

    (C) Saltation

    (D) None of these

  27. In which Era did the origin of life occur? [2020A]

    (A) Pre-cambrian

    (B) Proterozoic

    (C) Mesozoic

    (D) Cenozoic

  28. The cranial capacity of Homo sapiens is:

    (A) 1400-1600 c.c.

    (B) 500 c.c.

    (C) 800-1000 c.c.

    (D) 650-800 c.c.

  29. Echidna is: [2021A]

    (A) Connecting link

    (B) Vestigial organ

    (C) Extinct link

    (D) None of these

  30. Flippers of Penguin and Dolphin are examples of:

    (A) Homologous organs

    (B) Convergent evolution

    (C) Natural selection

    (D) None of these

  31. Paleontology is the study of: [2019A]

    (A) Birds

    (B) Fossils

    (C) Plants

    (D) Animals

  32. In which era did the first mammal appear? [2023A]

    (A) Permian

    (B) Triassic

    (C) Tertiary

    (D) None of these

  33. Why were ‘electrodes’ used in Miller’s experiment?

    (A) To create lightning conditions

    (B) To heat the mixture

    (C) To create oxygen

    (D) To stir the gases

  34. Analogous structures show: [2024A]

    (A) Divergent evolution

    (B) Convergent evolution

    (C) Parallel evolution

    (D) Saltation

  35. Dinosaurs are: [2022A]

    (A) Living reptiles

    (B) Extinct reptiles

    (C) Primitive reptiles

    (D) Extinct amphibians

  36. The cranial capacity of Neanderthal man was:

    (A) 650 c.c.

    (B) 900 c.c.

    (C) 1500 c.c.

    (D) 1400 c.c.

  37. When did the first cellular form of life probably appear?

    (A) 2000 million years ago

    (B) 2000 billion years ago

    (C) 4500 million years ago

    (D) 4.5 billion years ago

  38. The book ‘Philosophie Zoologique’ was written by: [2018A]

    (A) Darwin

    (B) Lamarck

    (C) Mendel

    (D) Hugo de Vries

  39. Examples of Divergent evolution are:

    (A) Forelimbs of whale, bat and humans

    (B) Wings of birds and butterfly

    (C) Potato and Sweet potato

    (D) All of the above

  40. At which level is natural selection carried out to develop desired traits? [2024A]

    (A) Individual level

    (B) Population level

    (C) Community level

    (D) Ecological level

  41. When did dinosaurs become extinct from Earth?

    (A) 200 mya

    (B) 65 mya

    (C) 25 mya

    (D) 500 mya

  42. Directional change in Hardy-Weinberg equilibrium is—

    (A) Gene flow

    (B) Mutation

    (C) Genetic drift

    (D) Gene recombination

  43. What was the atmosphere of Earth like at the time of origin of life? [2017A]

    (A) Oxidising

    (B) Reducing

    (C) Neutral

    (D) None of these

  44. Industrial melanism is an example of:

    (A) Stabilizing selection

    (B) Directional selection

    (C) Disruptive selection

    (D) Genetic drift

  45. What is the ‘Nictitating membrane’ found in humans?

    (A) Functional organ

    (B) Vestigial organ

    (C) Homologous organ

    (D) None of these

  46. Chemical evolution occurred before biological evolution; who gave this concept? [2019A]

    (A) A.I. Oparin and J.B.S. Haldane

    (B) Charles Darwin

    (C) Baptiste Lamarck

    (D) Arrhenius

  47. During which period were dinosaurs in their golden age? [2022A]

    (A) Jurassic

    (B) Triassic

    (C) Cretaceous

    (D) Permian

  48. An example of ‘Retrogressive’ evolution is:

    (A) Humans

    (B) Monkey

    (C) Herdmania

    (D) Bird

  49. Which is common for whale, seal and shark?

    (A) Convergent evolution

    (B) Homeothermy

    (C) Seasonal migration

    (D) Thick subcutaneous fat

  50. S.L. Miller is related to: [2018A]

    (A) Origin and evolution of life

    (B) Use and disuse of organs

    (C) Neo-Darwinism

    (D) Neo-Lamarckism

  51. Direct ancestor of man who made stone weapons and tools:

    (A) Ramapithecus

    (B) Australopithecus

    (C) Homo habilis

    (D) Homo erectus

  52. What were ‘Coacervates’?

    (A) Colloidal bodies of proteins

    (B) Nucleic acids

    (C) Bacteria

    (D) Fungi

  53. Primates that existed 15 million years ago:

    (A) Homo habilis

    (B) Australopithecus

    (C) Ramapithecus

    (D) Homo erectus

  54. Which of the following is not a vestigial organ in humans?

    (A) Nictitating membrane

    (B) Tail vertebrae

    (C) Vermiform appendix

    (D) Nails

  55. The main source of variation is: [2022A]

    (A) Mutation

    (B) Meiosis

    (C) Fertilization

    (D) Pollination

  56. The first organism formed on Earth was:

    (A) Cyanobacterium

    (B) Chemoheterotrophs

    (C) Autotrophs

    (D) Photoautotrophs

  57. The Big-Bang theory explains—

    (A) Origin of the Universe

    (B) Origin of Man

    (C) Origin of Vertebrates

    (D) Origin of Horse

  58. Wings of birds and butterfly are what kind of organs? [2020A]

    (A) Atavistic organs

    (B) Vestigial organs

    (C) Homologous organs

    (D) Analogous organs

  59. Who is the closest ancestor of Modern Man? [2016A]

    (A) Java man

    (B) Cro-Magnon man

    (C) Neanderthal man

    (D) Australopithecus

  60. Ecologically, the most successful species is:

    (A) Homo habilis

    (B) Homo sapiens

    (C) Homo erectus

    (D) None of these

  61. Sweet potato and Potato show:

    (A) Analogous structures

    (B) Divergent evolution

    (C) Same ancestry

    (D) Only A and C

  62. Human hands, Bat wings and Whale flippers represent: [2018A]

    (A) Homologous organs

    (B) Analogous organs

    (C) Vestigial organs

    (D) Parallel evolution

  63. Which is the Golden Age of Reptiles?

    (A) Proterozoic era

    (B) Paleozoic era

    (C) Mesozoic era

    (D) Cenozoic era

  64. On which ship did Darwin make his sea voyage? [2016A]

    (A) HMS Beagle

    (B) Titanic

    (C) D. Frog

    (D) None of these

  65. Ontogeny repeats phylogeny is known as—

    (A) Ontogenesis

    (B) Phylogenesis

    (C) Recapitulation theory

    (D) Paleontology

  66. Who gave the modern theory of origin of life?

    (A) Oparin and Haldane

    (B) Miller and Fox

    (C) Darwin and Lamarck

    (D) None of these

  67. According to Darwin, what was the main reason for ‘Adaptive Radiation’? [2022A]

    (A) Change in temperature

    (B) Competition and availability of food

    (C) Protection from predators

    (D) Search for new habitats

  68. Protopterus is a connecting link between: [2021A]

    (A) Fishes and Amphibians

    (B) Reptiles and Birds

    (C) Amphibians and Reptiles

    (D) Reptiles and Mammals

  69. Industrial melanism is a phenomenon of:

    (A) Geographical isolation

    (B) Reproductive isolation

    (C) Natural selection

    (D) Artificial selection

  70. According to Hardy-Weinberg principle, if the sum total of factors remains constant in a population, it is called? [2023A]

    (A) Genetic equilibrium

    (B) Mutation

    (C) Gene flow

    (D) Genetic drift

  71. The golden age of Amphibians was in which period?

    (A) Carboniferous

    (B) Silurian

    (C) Ordovician

    (D) Cambrian

  72. When were prehistoric cave-art created? [2024A]

    (A) 18,000 years ago

    (B) 10,000 years ago

    (C) 75,000 years ago

    (D) 40,000 years ago

  73. What is the smallest unit of Evolution?

    (A) Individual

    (B) Species

    (C) Population

    (D) Community

  74. The correct sequence of ancestors in relation to human evolution is:

    (A) Ramapithecus $\to$ Homo erectus $\to$ Australopithecus

    (B) Ramapithecus $\to$ Australopithecus $\to$ Homo erectus

    (C) Homo erectus $\to$ Australopithecus $\to$ Cro-Magnon man

    (D) Ramapithecus $\to$ Modern Man $\to$ Australopithecus

  75. Which theory is based on ‘Inheritance of acquired characters’? [2014A]

    (A) Darwinism

    (B) Lamarckism

    (C) Mutation theory

    (D) Modern synthetic theory

  76. Before origin of life, Earth’s atmosphere was made of which gas mixture?

    (A) $CH_4, O_2, O_3, NH_3$

    (B) $CH_4, NH_3, H_2$ & Water vapour

    (C) $CH_4, NH_3, CO_2, H_2$

    (D) $H_2, CO_2, H_2O, NH_3$

  77. Who developed the Fingerprinting technique? [2017A]

    (A) Alec Jeffreys

    (B) Wilson

    (C) Watson

    (D) Mendel

  78. Which human ancestor came after the Paleolithic era?

    (A) Homo erectus

    (B) Neanderthal man

    (C) Cro-Magnon man

    (D) Australopithecus

  79. Which of the following plays a major role in evolution? [2019A]

    (A) Genetic recombination

    (B) Mutation

    (C) Natural selection

    (D) All of these

  80. Analogous organs are: [2024A]

    (A) Similar in function

    (B) Similar in structure

    (C) Similar in origin

    (D) Similar in both structure and function

  81. In which epoch was there more radiation in mammals and birds?

    (A) Oligocene

    (B) Eocene

    (C) Pliocene

    (D) Paleocene

  82. What gives the most clear evidence of evolution?

    (A) Fossils

    (B) Vestigial organs

    (C) Embryo

    (D) Morphology

  83. Which of the following is the most solid evidence of evolution? [2023A]

    (A) Vestigial organs

    (B) Homologous organs

    (C) Fossils

    (D) Embryonic development

  84. Miller-Urey experiment demonstrated:

    (A) Chemical evolution

    (B) Panspermia

    (C) Spontaneous generation

    (D) None of these

  85. The modern theory of origin of life is based on:

    (A) Spontaneous generation

    (B) Biogenesis

    (C) Chemical evolution

    (D) Cosmozoic theory

  86. Darwin’s Finches are an example of:

    (A) Adaptive radiation

    (B) Natural selection

    (C) Divergent evolution

    (D) All of these

  87. Which is called the Devonian period?

    (A) Age of Fishes

    (B) Age of Amphibians

    (C) Age of Reptiles

    (D) Age of Mammals

  88. Which is an amazing change in the history of Homo sapiens?

    (A) Loss of body hair

    (B) Upright walking

    (C) Smaller jaws

    (D) Increase in brain size

  89. Paleontology for evolution is related to:

    (A) Embryonic development

    (B) Homologous organs

    (C) Fossils

    (D) Analogous organs

  90. Which of the following is an example of convergent evolution?

    (A) Eyes of Ostrich and Mammals

    (B) Wings of butterfly and birds

    (C) Flippers of Penguin and Dolphin

    (D) All of these

Topic 2: Human Health and Disease

  1. Which of the following is responsible for pneumonia in humans? [2026]

    (A) Streptococcus pneumoniae

    (B) Salmonella

    (C) Haemophilus influenzae

    (D) Both (A) and (C)

  2. What type of organism is the pathogen responsible for malaria? [2026]

    (A) Virus

    (B) Bacteria

    (C) Protozoa

    (D) Nematode

  3. Which of the following diseases is/are transmitted by insect vectors? [2026]

    (A) Typhoid

    (B) Malaria

    (C) Filaria

    (D) Both (B) and (C)

  4. What kind of barrier is the interferon secreted by virus-infected cells? [2026]

    (A) Cytokine barrier

    (B) Physical barrier

    (C) Cellular barrier

    (D) Physiological barrier

  5. Which of the following cells are responsible for humoral immune response? [2026]

    (A) B-lymphocytes

    (B) T-lymphocytes

    (C) Killer lymphocytes

    (D) Macrophages

  6. What is taken by the patient to stop graft rejection? [2026]

    (A) Immunosuppressant

    (B) Vaccine

    (C) Introduction of readymade antibodies

    (D) All of these

  7. Which of the following are primary lymphoid organs? [2026]

    (A) Bone marrow and tonsils

    (B) Bone marrow and thymus

    (C) Lymph nodes

    (D) Thymus and lymph nodes

  8. Which of the following viruses has reverse transcriptase enzyme? [2026]

    (A) TMV

    (B) Bacteriophage

    (C) HIV

    (D) All of these

  9. Which of the following drugs interferes with the transport of dopamine? [2026]

    (A) Nicotine

    (B) Hashish

    (C) Morphine

    (D) Cocaine

  10. AIDS is caused by: [2015A]

    (A) Increase in helper T-cells

    (B) Decrease in helper T-cells

    (C) Bacterial infection

    (D) None of these

  11. Opium is obtained from: [2019A]

    (A) Cannabis sativa

    (B) Papaver somniferum

    (C) Atropa belladonna

    (D) Erythroxylum coca

  12. Which disease is caused by protozoa? [2022A]

    (A) Influenza

    (B) Cancer

    (C) Amoebiasis

    (D) Cholera

  13. The causative agent of Elephantiases is: [2017A]

    (A) Ascaris

    (B) Wuchereria bancrofti

    (C) Entamoeba

    (D) None of these

  14. Antibodies are: [2021A]

    (A) Lipids

    (B) Carbohydrates

    (C) Glycoproteins

    (D) None of these

  15. Widal Test is done to confirm: [2016A]

    (A) Malaria

    (B) Typhoid

    (C) AIDS

    (D) Cancer

  16. Which is used for treatment of cancer? [2020A]

    (A) Physiotherapy

    (B) Chemotherapy

    (C) Psychotherapy

    (D) All of these

  17. Which of the following is a viral disease? [2015A]

    (A) Flu

    (B) Polio

    (C) AIDS

    (D) All of these

  18. The main cause of drug addiction is: [2022A]

    (A) Curiosity

    (B) Desire for pleasure

    (C) Mental stress

    (D) All of these

  19. Vaccination protects a person because it: [2021A]

    (A) Improves digestion

    (B) Increases RBC

    (C) Produces antibodies

    (D) None of these

  20. Where are B-cells produced? [2019A]

    (A) Thymus

    (B) Bone marrow

    (C) Liver

    (D) Spleen

  21. The main cause of Cirrhosis is: [2020A]

    (A) Cocaine

    (B) Alcohol

    (C) Tobacco

    (D) Bhang

  22. T-lymphocytes are produced in: [2017A]

    (A) Thymus

    (B) Stomach

    (C) Bone marrow

    (D) None of these

  23. Which hormone secretion increases during Puberty? [2024A]

    (A) Testosterone

    (B) Estrogen

    (C) Both (A) and (B)

    (D) None of these

  24. The main infective stage of Malaria parasite is: [2016A]

    (A) Sporozoite

    (B) Merozoite

    (C) Trophozoite

    (D) None of these

  25. ELISA test is done to detect: [2018A]

    (A) Cancer

    (B) AIDS

    (C) Leprosy

    (D) Typhoid

  26. Interferon is synthesized against: [2019A]

    (A) Bacteria

    (B) Virus

    (C) Fungi

    (D) Protozoa

  27. Alcohol consumption most affects which organ? [2015A]

    (A) Heart

    (B) Lung

    (C) Liver

    (D) Kidney

  28. The study of cancer is called: [2021A]

    (A) Cytology

    (B) Oncology

    (C) Histology

    (D) None of these

  29. Common Cold is caused by: [2023A]

    (A) Rhino virus

    (B) TMV

    (C) Salmonella

    (D) None of these

Topic 3: Microbes in Human Welfare

  1. Which vitamin content increases when milk converts to curd? [2026]

    (A) Vitamin A

    (B) Vitamin $B_2$

    (C) Vitamin C

    (D) Vitamin $B_{12}$

  2. Which is the blood cholesterol lowering agent? [2026]

    (A) Statin

    (B) Cyclosporin-A

    (C) Antibiotic

    (D) Streptokinase

  3. Which pair is incorrect? [2026]

    (A) Cyclosporin-A — From fungus

    (B) Statin — From yeast

    (C) Streptokinase — From bacteria

    (D) Butyric acid — From fungus

  4. Which cyanobacteria fixes atmospheric nitrogen? [2026]

    (A) Nostoc

    (B) Anabaena

    (C) Oscillatoria

    (D) All of these

  5. Butterfly caterpillars are controlled using: [2026]

    (A) Pseudomonas

    (B) Trichoderma

    (C) Bacillus thuringiensis

    (D) Baculovirus

  6. What is Acetabularia? [2014A]

    (A) Single cell algae

    (B) Protozoa

    (C) Bacteria

    (D) Fungi

  7. Who discovered Penicillin? [2018A]

    (A) Louis Pasteur

    (B) Alexander Fleming

    (C) Robert Koch

    (D) None of these

  8. First antibiotic made by fermentation was: [2023A]

    (A) Terramycin

    (B) Erythromycin

    (C) Penicillin

    (D) Neomycin

  9. Biogas mainly contains: [2022A]

    (A) $CO_2$

    (B) $H_2$

    (C) $CH_4$ (Methane)

    (D) $N_2$

  10. Which helps in increasing soil fertility? [2020A]

    (A) Pesticide

    (B) Biofertilizers

    (C) Chemical fertilizer

    (D) None of these

  11. Toddy is made from the sap of: [2024A]

    (A) Palm

    (B) Coconut

    (C) Bamboo

    (D) Mango

  12. Wine and Beer are produced with the help of: [2022A]

    (A) Bacteria

    (B) Yeast

    (C) Fungi

    (D) Algae

Topic 4: Food Production & General Evolution

  1. Plant breeding is used for: [2026]

    (A) Disease resistance

    (B) Improved quality

    (C) Increased yield

    (D) All of these

  2. Modern theory of origin of life is based on:

    (A) Spontaneous generation

    (B) Biogenesis

    (C) Chemical evolution

    (D) Panspermia

  3. First mammal appeared in: [2023A]

    (A) Permian

    (B) Triassic

    (C) Tertiary

    (D) None of these

  4. Cranial capacity of Neanderthal man was:

    (A) 650 c.c.

    (B) 900 c.c.

    (C) 1500 c.c.

    (D) 1400 c.c.

  5. Dinosaurs were in golden age during: [2022A]

    (A) Jurassic

    (B) Triassic

    (C) Cretaceous

    (D) Permian

  6. The first organism formed on Earth was:

    (A) Cyanobacterium

    (B) Chemoheterotrophs

    (C) Autotrophs

    (D) Photoautotrophs

  7. Big-Bang theory explains:

    (A) Origin of Universe

    (B) Origin of Man

    (C) Origin of Vertebrates

    (D) Origin of Horse

  8. Wings of bird and butterfly are: [2020A]

    (A) Atavistic organs

    (B) Vestigial organs

    (C) Homologous organs

    (D) Analogous organs

  9. Closest ancestor of modern man: [2016A]

    (A) Java man

    (B) Cro-Magnon man

    (C) Neanderthal man

    (D) Australopithecus

  10. Golden age of reptiles:

    (A) Proterozoic

    (B) Paleozoic

    (C) Mesozoic

    (D) Cenozoic

  11. Darwin’s ship was: [2016A]

    (A) HMS Beagle

    (B) Titanic

    (C) D. Frog

    (D) None of these

  12. Prehistoric cave art dates back to: [2024A]

    (A) 18,000 years ago

    (B) 10,000 years ago

    (C) 75,000 years ago

    (D) 40,000 years ago

  13. DNA Fingerprinting was developed by: [2017A]

    (A) Alec Jeffreys

    (B) Wilson

    (C) Watson

    (D) Mendel

  14. Most solid evidence of evolution: [2023A]

    (A) Vestigial organs

    (B) Homologous organs

    (C) Fossils

    (D) Embryonic development

Bihar Board Class 12th के (Biology/जीवविज्ञान ) = जीवविज्ञान ‘भाग-1 (Englsih Medium) Book Chapter- 7 Evolution के Exam 2027 MCQs Questions Answer Key

Q. No.Ans.Q. No.Ans.Q. No.Ans.Q. No.Ans.
91(D)105(B)119(A)133(C)
92(C)106(B)120(D)134(B)
93(D)107(D)121(A)135(D)
94(A)108(D)122(D)136(A)
95(A)109(C)123(D)137(B)
96(A)110(B)124(C)138(A)
97(B)111(B)125(A)139(D)
98(C)112(C)126(B)140(B)
99(D)113(C)127(C)141(C)
100(B)114(A)128(C)142(A)
101(B)115(B)129(B)143(A)
102(C)116(B)130(A)144(A)
103(B)117(C)131(B)145(C)
104(C)118(B)132(D)

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