This quiz works best with JavaScript enabled. Home > Cbse > Class 12 > Science > Biology > Class 12 Biology Chapter 7 Evolution – Quiz 22 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 7 Evolution Quiz 22 (60 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Antibiotic resistant bacteria can A) Survive. B) Reproduce. C) Pass on the resistant gene to their offspring. D) All of the above. Show Answer Correct Answer: D) All of the above. 2. A population of cockroaches was sprayed with an insecticide. Some cockroaches survived and produced a population of cockroaches that was resistant to this spray. What can BEST be inferred from this example? A) Species will adapt no matter what the environment. B) Environment has no effect on the survival of an organism. C) Individuals with favorable variations survive and reproduce. D) Insecticides cause mutations that are passed on to the next generation. Show Answer Correct Answer: C) Individuals with favorable variations survive and reproduce. 3. You find a species that seems to be unicellular and is eating smaller cells around it. It has organelles and a nucleus. Which kingdom is it MOST likely a part of? A) Bacteria. B) Fungi. C) Protists. D) Plants. Show Answer Correct Answer: C) Protists. 4. Formation of oceans, atmosphere, and continents; bacteria A) Archaean. B) Precambrian. C) Triassic. D) Proterozoic. Show Answer Correct Answer: A) Archaean. 5. Which of the following best explains the concept of natural selection in the context of evolution? A) It is a process where organisms with favorable traits are more likely to survive and reproduce. B) It is a random process that leads to the extinction of species. C) It is a process where organisms change their traits according to their needs. D) It is a process that occurs only in laboratory settings. Show Answer Correct Answer: A) It is a process where organisms with favorable traits are more likely to survive and reproduce. 6. A heritable trait that helps an organism to survive and reproduce A) Mutation. B) Variation. C) Adaptation. D) None of the above. Show Answer Correct Answer: C) Adaptation. 7. Natural selection results in change in a population's ..... traits over time. A) Inherited. B) Acquired. C) All the above. D) None of the above. Show Answer Correct Answer: A) Inherited. 8. ..... are the body parts that share a common functions, but not structure A) Homologous Structure. B) Analogous Structure. C) Vestigial Structure. D) Speciation. E) Allele Frequency. Show Answer Correct Answer: B) Analogous Structure. 9. When did modern-day humans appear? A) 6 million years ago. B) 200, 000 years ago. C) 2020. D) None of the above. Show Answer Correct Answer: A) 6 million years ago. 10. In the context of evolution, what does the term 'natural selection' refer to? A) The process by which organisms with favorable traits are more likely to survive and reproduce. B) The random changes in allele frequencies in a population. C) The movement of individuals between populations. D) The formation of new species through geographic isolation. Show Answer Correct Answer: A) The process by which organisms with favorable traits are more likely to survive and reproduce. 11. Which experiment would best demonstrate the principle of adaptive radiation? A) Observing the beak variations in finches on different islands. B) Measuring the growth rate of bacteria in a controlled environment. C) Comparing the DNA sequences of different mammalian species. D) Studying the migration patterns of birds across continents. Show Answer Correct Answer: A) Observing the beak variations in finches on different islands. 12. What kind of chemical bond is found between paired bases of the DNA double helix? A) Hydrogen. B) Ionic. C) Covalent. D) None of the above. Show Answer Correct Answer: A) Hydrogen. 13. ..... was a naturalist, a person who studies plants and animals by observing them. A) Francis Crick. B) Charles Darwin. C) Charlie Brown. D) Alfred Wallace. Show Answer Correct Answer: B) Charles Darwin. 14. What is the creation of a new species? A) Macroevolution. B) Evolution. C) Speciation. D) Species Evolution. Show Answer Correct Answer: C) Speciation. 15. Branch of biology used to name organisms A) Entomology. B) Botany. C) Taxonomy. D) Geology. Show Answer Correct Answer: C) Taxonomy. 16. Body parts of organisms that are similar in position but different in function are called ..... The forelimbs of different mammals are examples. A) Comparative anatomy. B) Homologous structures. C) Limited resources. D) Extinct traits. Show Answer Correct Answer: B) Homologous structures. 17. Which of the following is major cause of the size limits for certain types of cells? A) Evolutionary progression in cell size; more primitive cells have smaller sizes. B) The need for sufficient surface area to support the cell's metabolic needs. C) Limitation on the strength and integrity of the plasma membrane as cell size increases. D) The difference in plasma membranes between prokaryotes and eukaryotes. Show Answer Correct Answer: B) The need for sufficient surface area to support the cell's metabolic needs. 18. Scientific method used to determine the series of an event A) RADIOMETRIC DATING. B) TRACK INFILLS. C) TRACKWAY-. D) AMBER. Show Answer Correct Answer: A) RADIOMETRIC DATING. 19. Are body parts or organs that have lost their original function through the process of evolution. These structures may have had an important function in the past, but over time they have become less and less useful, and eventually lost their function altogether. A) Comparative Anatomy. B) Atavistic Structures. C) Comparative Embryology. D) Vestigial structures. Show Answer Correct Answer: D) Vestigial structures. 20. A body, organ, or bone that is still present but no longer useful to the organism is ..... A) Homologous Structure. B) Vestigial Structure. C) All the above. D) None of the above. Show Answer Correct Answer: B) Vestigial Structure. 21. Video Click HereWhich of the following characteristics are shared between modern birds and their reptile ancestors? A) Long bony tails. B) A S-Shaped Neck. C) Flight. D) Sharp teeth. Show Answer Correct Answer: B) A S-Shaped Neck. 22. The preserved remains of plants and animals whose bodies were buried in sediments, such as sand and mud, under ancient seas, lakes and rivers A) Fossils. B) Fitness. C) Bones. D) Survival of the fittest. Show Answer Correct Answer: A) Fossils. 23. Which mechanism of change arises from a random change in the genetic code? A) Mutation. B) Natural Selection. C) Gene Flow. D) Genetic Drift. Show Answer Correct Answer: A) Mutation. 24. What are examples of Homologous Structures? A) Hair Comb to Scissors. B) Bird Wing to Butterfly Wing. C) The Human Arm to Bird Wing to Whale Flipper. D) Elephant Tusk to Rhinoceros Horn. Show Answer Correct Answer: C) The Human Arm to Bird Wing to Whale Flipper. 25. How does genetic drift differ from natural selection? A) Genetic drift is a random process, while natural selection is not. B) Genetic drift increases genetic diversity, while natural selection decreases it. C) Genetic drift only occurs in large populations, while natural selection occurs in all populations. D) Genetic drift leads to adaptation, while natural selection does not. Show Answer Correct Answer: A) Genetic drift is a random process, while natural selection is not. 26. What idea did Larmarck propose that was later proven to be incorrect? A) All species are descended from a common ancestor. B) There is a relationship between an organism and its environment. C) Living organisms change over time. D) Acquired characteristics can be inherited. Show Answer Correct Answer: D) Acquired characteristics can be inherited. 27. Horse breeding for specific desired traits is an example of which type of evolutionary evidence? A) Embryology. B) Biochemical molecules. C) Artificial selection. D) Fossils. Show Answer Correct Answer: C) Artificial selection. 28. Variations in a population are maintained by A) Mutations. B) Genetic recombination. C) Gene flow. D) All of the above. Show Answer Correct Answer: D) All of the above. 29. These include factors such as pollutants, pesticides, and heavy metals that can damage DNA and lead to mutations A) Radiation Mutagens. B) Biological Mutagens. C) Environmental Mutagens. D) Chemical Mutagens. Show Answer Correct Answer: C) Environmental Mutagens. 30. A vestigial structure is ..... A) A cool new vest you can wear. B) A body part that does not seem to have a function in an organism. C) An arrangement of and relations between the parts or elements of something complex. D) Body parts of different organisms that have a similar structure but not necessarily a similar function. Show Answer Correct Answer: B) A body part that does not seem to have a function in an organism. 31. Which characteristic is shared by all prokaryotes and eukaryotes? A) Ability to move in response to environmental stimuli. B) Use of cellular respiration for energy release. C) Use of organelles to control cell processes. D) Ability to store hereditary information. Show Answer Correct Answer: D) Ability to store hereditary information. 32. If two modern organisms are distantly related in an evolutionary sense, then one should expect that A) Their chromosomes should be very similar. B) They should share fewer homologous structures than two more closely related organisms. C) They shared a common ancestor relatively recently. D) They live in very different habitats. Show Answer Correct Answer: B) They should share fewer homologous structures than two more closely related organisms. 33. This scientist came up with the idea of natural selection. A) Jean Baptiste Lamarck. B) Charles Darwin. C) Thomas Malthus. D) Gregor Mendel. Show Answer Correct Answer: B) Charles Darwin. 34. Fitness is described as ..... A) The ability to live and reproduce. B) Any physical feature that increases the chances of surviving in a population. C) A drastic decrease in the size of the population that decreases the biodiversity. D) How athletic an organism is. Show Answer Correct Answer: A) The ability to live and reproduce. 35. Based on comparative anatomy, which structure would be homologous to the arm of a human? A) Wing of a bat. B) Foot of a chimpanzee. C) Sternum of a horse. D) Leg of a bird. Show Answer Correct Answer: A) Wing of a bat. 36. Some elephants have short trunks while others have long trunks this is an example of A) Variation. B) Survival of the fittest. C) Evolution. D) None of the above. Show Answer Correct Answer: A) Variation. 37. A very old fossil is found that looks like a modern day alligator. This is an example of ..... A) Species vary globally. B) Species vary locally. C) Species vary over time. D) None of the above. Show Answer Correct Answer: C) Species vary over time. 38. Genetic Drift is the loss of genetic diversity due to a random event such as a natural disaster. What effect would genetic drift have on a population's gene pool? A) A smaller gene pool. B) A larger gene pool. C) No change in gene pool size. D) None of the above. Show Answer Correct Answer: A) A smaller gene pool. 39. Over time, early organisms were ..... and became more ..... A) Simple, complex. B) Younger, older. C) Uncommon, common. D) Complex, simple. Show Answer Correct Answer: A) Simple, complex. 40. Layered fossils create a historical sequence (timeline) is known as ..... A) Natural Selection. B) Extinction. C) Fossil Record. D) Evolution. Show Answer Correct Answer: C) Fossil Record. 41. The process of grouping things based on their similarities. A) Classification. B) Species. C) Taxonomy. D) Genus. Show Answer Correct Answer: A) Classification. 42. Which of the following separates the DNA strands during replication? A) Helicase. B) DNA polymerase. C) Primase. D) None of the above. Show Answer Correct Answer: A) Helicase. 43. Over many generations, ..... traits become more common in the population. A) Favorable. B) Harmful. C) Random. D) Temporary. Show Answer Correct Answer: A) Favorable. 44. What are analogous structures? A) Structures with a common evolutionary origin. B) Structures that look similar but have unrelated evolutionary origins. C) Structures that are identical in all species. D) Structures that have no function. Show Answer Correct Answer: B) Structures that look similar but have unrelated evolutionary origins. 45. On two Arizona lava flows, dark brown rock pocket mice were found to have a advantage for survival over pale brown mice because ..... A) All dark mice had the same mutation. B) Some mice moved across the desert to the other lava flow and bred. C) Two different mutations created different black mice that were able to survive the visual predators on each lava flow. D) Only one gene controls the fur colour of the mice. Show Answer Correct Answer: C) Two different mutations created different black mice that were able to survive the visual predators on each lava flow. 46. What term describes structures in different species that are similar in form but not necessarily in function, indicating a common ancestry? A) Analogous structures. B) Convergent structures. C) Homologous structures. D) Vestigial structures. Show Answer Correct Answer: C) Homologous structures. 47. What is the founder effect? A) A decrease in genetic variation that occurs when a new population is established by a very small number of individuals from a larger population. B) An increase in genetic variation due to mutations. C) The effect of natural selection on a population. D) The process by which species become extinct. Show Answer Correct Answer: A) A decrease in genetic variation that occurs when a new population is established by a very small number of individuals from a larger population. 48. What change in jaw size is typically observed in the evolution of hominids from early ancestors to modern humans? A) Jaw size has progressively increased. B) Jaw size has consistently decreased. C) Jaw size has remained constant. D) Jaw size has fluctuated unpredictably. Show Answer Correct Answer: B) Jaw size has consistently decreased. 49. What is the primary purpose of the biological classification system? A) To study the genetic makeup of organisms. B) To organize living organisms into groups based on similarities. C) To track the migration patterns of animals. D) To determine the age of fossils. Show Answer Correct Answer: B) To organize living organisms into groups based on similarities. 50. The study of similarities and differences among structures of living species is called ..... A) Comparative anatomy. B) Common ancestor. C) Homologous structures. D) Variation. Show Answer Correct Answer: A) Comparative anatomy. 51. If the frequency of dominant phenotype is 0.36, what is the frequency of the dominant allele? A) 0.48. B) 0.2. C) 0.6. D) 0.8. Show Answer Correct Answer: B) 0.2. 52. What is coevolution? A) The study of prehistoric life. B) The study of the structures of organisms. C) When two or more species affect each other's evolution through the process of natural selection. D) Over generations, organisms evolve a variety of characteristics that allow them to survive in different environments. Show Answer Correct Answer: C) When two or more species affect each other's evolution through the process of natural selection. 53. Group of organisms capable of interbreeding and producing fertile offspring. A) Species. B) Population. C) Homologous structure. D) Gene pool. Show Answer Correct Answer: A) Species. 54. When genetic information travels from one population to another it is called ..... A) Gene flow. B) Bottleneck effect. C) Variation. D) Genetic drift. Show Answer Correct Answer: A) Gene flow. 55. A piece of DNA that codes for a trait and causes heredity? A) Allele. B) Genes. C) Dominant Trait. D) Recessive Trait. Show Answer Correct Answer: B) Genes. 56. Embryos of difference species are similar. This is what example of evolution? A) Embryology. B) Anatomical. C) Molecular. D) Fossil. Show Answer Correct Answer: A) Embryology. 57. Which of the following is an example of descent with modification in bearded dragons? A) A bearded dragon population will mostly all have the beneficial adaptation of camouflage scales acquired through many generations of inheritance. B) A bearded dragon that grows to the same size as its parents. C) Bearded dragons that live in the same area as their parents. D) A bearded dragon that eats the same type of insects as its parents. Show Answer Correct Answer: A) A bearded dragon population will mostly all have the beneficial adaptation of camouflage scales acquired through many generations of inheritance. 58. Slow in steady change in a species A) Gradualism. B) Punctuated Equilibrium. C) All the above. D) None of the above. Show Answer Correct Answer: A) Gradualism. 59. Which evidence for evolution do the common features in the bone structure of vertebrate limbs provide? A) Divergent radiation. B) Discontinuous variation. C) Adaptive radiation. D) Convergent evolution. Show Answer Correct Answer: C) Adaptive radiation. 60. Homologous structures are body parts of different organisms that have similar ..... but not necessarily a similar ..... A) Structure; Function. B) Purpose; Look. C) Function; Structure. D) Bones; Structure. Show Answer Correct Answer: A) Structure; Function. ← PreviousNext →Related QuizzesScience QuizzesClass 12 QuizzesClass 12 Biology Chapter 7 Evolution Quiz 1Class 12 Biology Chapter 7 Evolution Quiz 2Class 12 Biology Chapter 7 Evolution Quiz 3Class 12 Biology Chapter 7 Evolution Quiz 4Class 12 Biology Chapter 7 Evolution Quiz 5Class 12 Biology Chapter 7 Evolution Quiz 6Class 12 Biology Chapter 7 Evolution Quiz 7Class 12 Biology Chapter 7 Evolution Quiz 8 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books