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Home/MDCAT/MDCAT Biology Evolution Test Online

MDCAT Biology Evolution Test Online

Mustansar KhanLast Updated: May 27, 2025

MDCAT Biology Evolution Test

MDCAT Biology Evolution Chaper Online Test

Total Questions:	50
Time Allowed:	25 Minutes
Total Marks:	50
How to Attempt Test:	Please choose the right Option in MCQ-type question.
Test Helpful For:	MDCAT Entry Test Biology Online Test Interview Questions about Biology All Universities Entrance Test Recruitments Tests

MDCAT Biology Evolution MCQS Online Test

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1. Which of the following is a vestigial organ in humans?
Appendix
Heart
Kidney
Liver

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2. Which of the following best explains why some organisms survive and reproduce better than others?
Smaller body size
Favorable inherited traits
Equal reproductive chances
Random luck

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3. Who co-discovered the theory of natural selection alongside Darwin?
Lamarck
Lyell
Wallace
Mendel

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4. Which of the following provides molecular evidence for evolution?
Embryonic stages
Homologous organs
Fossilized bones
DNA and protein similarities

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5. Which term describes a trait that no longer serves a useful function?
Adaptive
Homologous
Vestigial
Analogous

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6. Which type of selection favors average traits?
Directional selection
Stabilizing selection
Random selection
Disruptive selection

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7. Which theory explains the origin of species through gradual change?
Catastrophism
Intelligent design
Gradualism
Spontaneous generation

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8. The inheritance of acquired characteristics is associated with:
Darwin
Wallace
Lamarck
Mendel

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9. Which concept is central to Darwin’s theory?
Mutation
Cloning
Acquired traits
Natural selection

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10. What causes speciation?
Shared habitats
Continuous gene flow
Reproductive isolation
Mating within the same species

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11. Which of the following is not evidence for evolution?
Astrology
Fossils
Artificial selection
Homologous structures

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12. Which term refers to organisms better suited to their environment surviving longer?
Mutation
Speciation
Artificial selection
Natural selection

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13. Which group of animals is considered to have evolved from reptiles?
Birds
Fishes
Mammals
Amphibians

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14. Which of the following would NOT be considered a driving force of evolution?
Mutation
Genetic drift
Photosynthesis
Natural selection

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15. According to Darwin, more offspring are produced than can survive. This leads to:
Overpopulation only
Genetic uniformity
Competition for resources
Rapid extinction

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16. What is the unit of evolution?
Individual
Cell
Population
Gene

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17. Which evidence of evolution is provided by embryology?
Bone fossils
Similar early development stages
Climate change
Mutations

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18. Which of the following scientists proposed the theory of natural selection?
Charles Darwin
Gregor Mendel
Jean-Baptiste Lamarck
Louis Pasteur

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19. Which of the following would most likely increase genetic variation?
Uniform environment
Cloning
Mutation
Asexual reproduction

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20. Which of the following is NOT a basic assumption of Darwin’s theory?
Survival of the fittest
Variation exists
Acquired traits are inherited
Struggle for existence

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21. Which structure provides evidence of common ancestry?
Artificial limbs
Analogous structures
Homologous structures
Vestigial structures

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22. Which concept is central to Darwin’s theory of evolution?
Natural selection
Use and disuse
Acquired characteristics
Spontaneous generation

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23. What does the fossil record primarily show?
Fossils are formed randomly
All organisms evolved in one era
A complete history of all life
Changes in organisms over time

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24. Which structure is analogous to a bird’s wing?
Dog paw
Insect wing
Human arm
Whale flipper

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25. What causes variation in populations according to Neo-Darwinism?
Growth
Adaptation
Mutation and recombination
Overpopulation

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26. The human tailbone (coccyx) is an example of:
Functional structure
Analogous structure
Vestigial structure
Evolutionary defect

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27. Which is an example of adaptive radiation?
Finches on Galapagos Islands
Bacteria in petri dishes
Penguins in Antarctica
Alligators in swamps

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28. What is artificial selection?
Human-guided breeding for desired traits
Evolution in labs
Survival of the strongest
Natural evolutionary change

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29. Which term refers to a random change in gene frequencies?
Genetic drift
Mutation
Adaptation
Natural selection

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30. Which phrase best describes survival of the fittest?
Largest animals win
All traits are inherited
Fastest runners survive
Best adapted organisms reproduce

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31. What is the raw material of evolution?
Sunlight
Temperature
Energy
Mutation

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32. What is a fossil?
Meteor rock
Living organism
Preserved remains of ancient organisms
Moon mineral

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33. Which of the following best defines evolution?
Gradual change in species over time
Movement of organisms
Sudden creation of new traits
Rapid change of an individual

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34. Which scientist laid the foundation of genetics that supported Neo-Darwinism?
Lamarck
Wallace
Mendel
Darwin

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35. The wings of a bat and the arms of a human are:
Analogous
Homologous
Mutated
Vestigial

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36. The similarity in bone structure of the forelimbs of whales, bats, and humans is due to:
Homologous structures
Natural selection
Artificial selection
Environmental similarities

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37. Fossil evidence supports evolution because it shows:
Progressive changes over time
Genetic mutations
Sudden species appearances
Differences in rocks

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38. Which of the following is a concept of Neo-Darwinism?
Use and disuse
Universal ancestry
Inheritance of acquired traits
Genetic mutations and natural selection

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39. According to Lamarck, giraffes have long necks because:
They stretched their necks to reach food
They evolved in colder climates
They mutated randomly
They were born that way

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40. What type of evolution leads to similar structures in unrelated organisms?
Parallel evolution
Divergent evolution
Convergent evolution
Artificial selection

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41. Which of the following is not a concept of Neo-Darwinism?
Recombination
Inheritance of acquired traits
Mutation
Natural selection

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Mustansar KhanLast Updated: May 27, 2025

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Mustansar Khan

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