This quiz works best with JavaScript enabled. Home > Class 12 > Class 12 Biology Chapter 7 Evolution – Quiz 52 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Class 12 Biology Chapter 7 Evolution Quiz 52 (25 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. What are a group of organisms that share the same characteristics and can mate with one another to produce fertile offspring? A) Species. B) Population. C) All the above. D) None of the above. Show Answer Correct Answer: A) Species. 2. Which of the following experiments would best demonstrate the principle of adaptation in a population? A) Observing the beak size variation in finches on different islands. B) Measuring the growth rate of bacteria in a controlled environment. C) Comparing the DNA sequences of different species of mammals. D) Analyzing the migration patterns of birds across continents. Show Answer Correct Answer: A) Observing the beak size variation in finches on different islands. 3. What evidence shows that parts of Utah were once the sea floor of an ancient ocean? A) Mammoth fossils found in caves. B) Saber tooth tiger claws found in rocks. C) Trilobites found in limestone. D) Cooper and gold found in mines. Show Answer Correct Answer: C) Trilobites found in limestone. 4. In a population of clover flowers, there are both white and purple varieties. The cows that graze the field where the clover grows prefer the purple variety. Over time, the white clover flowers become much more numerous and the purple ones more scarce. This is an example of which process that can cause evolutionary change? A) Genetic equilibrium. B) Genetic mutation. C) Natural selection. D) Overproduction. Show Answer Correct Answer: C) Natural selection. 5. Body parts of different organisms that have a similar structure, but may have different functions A) Vestigial structures. B) Biodiversity. C) Analogous structures. D) Homologous structures. Show Answer Correct Answer: D) Homologous structures. 6. If bacteria are much too small to see, what is one reason why can we see colonies in the petri dishes that have plenty of food to eat after only a few days? A) Because when bacteria split, each new bacterium is twice as big as the old. B) Because of the speed with which bacteria grow and reproduce when they have the resources they need. C) Because bacteria only grows in a petri dish. D) None of the above. Show Answer Correct Answer: B) Because of the speed with which bacteria grow and reproduce when they have the resources they need. 7. Who is credited with developing the theory of evolution by natural selection? A) Gregor Mendel. B) Andrew Krummen. C) James Watson. D) Charles Darwin. Show Answer Correct Answer: D) Charles Darwin. 8. Is the process by which humans selectively breed plants or animals for specific traits. It is a form of selection that is driven by human choice rather than natural selection pressures. A) Natural Selection. B) Adaptation. C) Artificial Selection. D) Inbreeding. Show Answer Correct Answer: C) Artificial Selection. 9. Individuals interbreeding is called ..... A) DNA. B) Species. C) All the above. D) None of the above. Show Answer Correct Answer: B) Species. 10. What important event in Earth's history occurred during the Jurassic period? A) The first birds emerged on Earth. B) Mammals were in search of food. C) Animals with shells emerged on Earth. D) Treelike ferns first began to grow and populate. Show Answer Correct Answer: A) The first birds emerged on Earth. 11. Which of the following pieces of evolution evidence deals with similar molecules in related individual species? A) Fossil record. B) Comparative embryology. C) DNA comparison. D) Comparative anatomy. Show Answer Correct Answer: C) DNA comparison. 12. An animal has several inherited characteristics that makes it much fitter than its rivals. According to Natural Selection it should: A) Help the others that are less fortunate. B) Survive longer, have more and better babies. C) Be equals with its kin. D) None of the above. Show Answer Correct Answer: B) Survive longer, have more and better babies. 13. Why do some scientists believe that RNA, rather than DNA, was the first genetic material? A) RNA probably mutatedinto DNA. B) RNAhas both information storage and catalytic properties. C) RNA can replicate more accurately thanDNA. D) RNA contains uracil in place ofthymine. Show Answer Correct Answer: B) RNAhas both information storage and catalytic properties. 14. Northern elephant seals were hunted by humans in the 1890s, reducing their population size to 20 individuals. Even though their population is now over 30, 000, the seals still have reduced genetic variation. What's the best explanation of this phenomenon? A) Bottleneck Effect. B) Founder Effect. C) Stabilizing selection. D) Fitness. Show Answer Correct Answer: A) Bottleneck Effect. 15. An individual animal, plant, or singled-celled life form is known as an A) Evolution. B) Genetic. C) Organism. D) Trait. Show Answer Correct Answer: C) Organism. 16. Which of the following phrases best describes the results of natural selection? A) Natural variation found in all populations. B) Unrelated species living in different locations. C) Changes in the inherited characteristics of a population over time. D) Struggle for existence undergone by all iving things. Show Answer Correct Answer: C) Changes in the inherited characteristics of a population over time. 17. How do organisms get new traits (alleles)? A) Mutations. B) Environment. C) Population. D) None of the above. Show Answer Correct Answer: A) Mutations. 18. 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. 19. 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. 20. 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) Fungi. B) Bacteria. C) Protists. D) Plants. Show Answer Correct Answer: C) Protists. 21. Formation of oceans, atmosphere, and continents; bacteria A) Archaean. B) Precambrian. C) Triassic. D) Proterozoic. Show Answer Correct Answer: A) Archaean. 22. 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. 23. 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. 24. 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. 25. ..... 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. ← 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