This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 7 Evolution – Quiz 53 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 7 Evolution Quiz 53 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. 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. 2. 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. 3. 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. 4. 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. 5. ..... 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. 6. What is the creation of a new species? A) Speciation. B) Evolution. C) Macroevolution. D) Species Evolution. Show Answer Correct Answer: A) Speciation. 7. Branch of biology used to name organisms A) Entomology. B) Botany. C) Taxonomy. D) Geology. Show Answer Correct Answer: C) Taxonomy. 8. Body parts of organisms that are similar in position but different in function are called ..... The forelimbs of different mammals are examples. A) Extinct traits. B) Limited resources. C) Homologous structures. D) Comparative anatomy. Show Answer Correct Answer: C) Homologous structures. 9. 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. 10. Scientific method used to determine the series of an event A) RADIOMETRIC DATING. B) AMBER. C) TRACK INFILLS. D) TRACKWAY-. Show Answer Correct Answer: A) RADIOMETRIC DATING. 11. 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) Comparative Embryology. C) Atavistic Structures. D) Vestigial structures. Show Answer Correct Answer: D) Vestigial structures. 12. 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. 13. Video Click HereWhich of the following characteristics are shared between modern birds and their reptile ancestors? A) Flight. B) A S-Shaped Neck. C) Long bony tails. D) Sharp teeth. Show Answer Correct Answer: B) A S-Shaped Neck. 14. 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) Bones. C) Fitness. D) Survival of the fittest. Show Answer Correct Answer: A) Fossils. 15. Which mechanism of change arises from a random change in the genetic code? A) Mutation. B) Gene Flow. C) Genetic Drift. D) Natural Selection. Show Answer Correct Answer: A) Mutation. 16. What are examples of Homologous Structures? A) Hair Comb to Scissors. B) The Human Arm to Bird Wing to Whale Flipper. C) Bird Wing to Butterfly Wing. D) Elephant Tusk to Rhinoceros Horn. Show Answer Correct Answer: B) The Human Arm to Bird Wing to Whale Flipper. 17. 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. 18. 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. 19. Horse breeding for specific desired traits is an example of which type of evolutionary evidence? A) Artificial selection. B) Embryology. C) Fossils. D) Biochemical molecules. Show Answer Correct Answer: A) Artificial selection. 20. 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. 21. These include factors such as pollutants, pesticides, and heavy metals that can damage DNA and lead to mutations A) Chemical Mutagens. B) Radiation Mutagens. C) Biological Mutagens. D) Environmental Mutagens. Show Answer Correct Answer: D) Environmental Mutagens. 22. 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. 23. Which characteristic is shared by all prokaryotes and eukaryotes? A) Ability to store hereditary information. B) Use of organelles to control cell processes. C) Use of cellular respiration for energy release. D) Ability to move in response to environmental stimuli. Show Answer Correct Answer: A) Ability to store hereditary information. 24. If two modern organisms are distantly related in an evolutionary sense, then one should expect that A) They live in very different habitats. B) Their chromosomes should be very similar. C) They shared a common ancestor relatively recently. D) They should share fewer homologous structures than two more closely related organisms. Show Answer Correct Answer: D) They should share fewer homologous structures than two more closely related organisms. 25. This scientist came up with the idea of natural selection. A) Jean Baptiste Lamarck. B) Gregor Mendel. C) Charles Darwin. D) Thomas Malthus. Show Answer Correct Answer: C) Charles Darwin. ← PreviousNext →Related 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 8Class 12 Biology Chapter 7 Evolution Quiz 9Class 12 Biology Chapter 7 Evolution Quiz 10 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books