Evolution MCQs

1. Evolution is defined as:
A) Change in individual organisms
B) Change in populations over time
C) Growth of organisms
D) Movement of organisms
Answer: B
The theory of evolution by natural selection was proposed by:
A) Lamarck
B) Mendel
C) Darwin
D) Watson
Answer: C
The book On the Origin of Species was written by:
A) Darwin
B) Wallace
C) Mendel
D) Linnaeus
Answer: A
Natural selection acts on:
A) Genotype
B) Phenotype
C) DNA
D) RNA
Answer: B
The basic unit of evolution is:
A) Individual
B) Species
C) Population
D) Cell
Answer: C
Evolution results in:
A) Perfection
B) Adaptation
C) Uniformity
D) Stability
Answer: B
Variation in a population is caused by:
A) Mutation
B) Reproduction
C) Growth
D) Aging
Answer: A
Homologous structures indicate:
A) Different ancestry
B) Common ancestry
C) No relation
D) Artificial selection
Answer: B
Analogous structures show:
A) Same origin
B) Same function
C) Same ancestry
D) Same genetics
Answer: B
Vestigial organs are:
A) Fully functional
B) Non-functional remnants
C) New organs
D) Artificial organs
Answer: B
Survival of the fittest means:
A) Strongest survive
B) Most intelligent survive
C) Best adapted survive
D) Largest survive
Answer: C
Fossils provide evidence for:
A) Mutation
B) Evolution
C) Respiration
D) Photosynthesis
Answer: B
The study of fossils is called:
A) Anatomy
B) Paleontology
C) Ecology
D) Genetics
Answer: B
Speciation refers to:
A) Extinction
B) Formation of new species
C) Mutation
D) Migration
Answer: B
Genetic drift occurs due to:
A) Natural selection
B) Random changes
C) Mutation
D) Migration
Answer: B
Mutation is:
A) Sudden genetic change
B) Growth
C) Adaptation
D) Selection
Answer: A
Artificial selection is performed by:
A) Nature
B) Humans
C) Animals
D) Plants
Answer: B
The founder effect is a type of:
A) Mutation
B) Natural selection
C) Genetic drift
D) Migration
Answer: C
The bottleneck effect reduces:
A) Population size
B) Genetic variation
C) Mutation rate
D) Fitness
Answer: B
Adaptive radiation leads to:
A) Extinction
B) Diversity
C) Uniformity
D) Stability
Answer: B
Darwin observed finches in:
A) Africa
B) Australia
C) Galápagos Islands
D) Asia
Answer: C
Fitness in evolution refers to:
A) Physical strength
B) Reproductive success
C) Speed
D) Size
Answer: B
Gene flow occurs through:
A) Mutation
B) Migration
C) Selection
D) Isolation
Answer: B
Convergent evolution results in:
A) Homologous structures
B) Analogous structures
C) Vestigial organs
D) Mutation
Answer: B
Divergent evolution leads to:
A) Similar structures
B) Different structures
C) No change
D) Extinction
Answer: B
Evolution is:
A) Linear
B) Random
C) Directional
D) Branching
Answer: D
Which is an example of vestigial organ?
A) Heart
B) Appendix
C) Brain
D) Liver
Answer: B
Microevolution refers to:
A) Large changes
B) Small genetic changes
C) Species formation
D) Extinction
Answer: B
Macroevolution refers to:
A) Small changes
B) Large-scale evolution
C) Mutation
D) Migration
Answer: B
Isolation can lead to:
A) Mutation
B) Speciation
C) Extinction
D) Adaptation
Answer: B
Reproductive isolation prevents:
A) Mutation
B) Interbreeding
C) Selection
D) Migration
Answer: B
Hardy-Weinberg principle assumes:
A) Evolution occurs
B) No evolution
C) Mutation
D) Selection
Answer: B
Which disrupts Hardy-Weinberg equilibrium?
A) No mutation
B) Random mating
C) Natural selection
D) Large population
Answer: C
Antibiotic resistance is an example of:
A) Artificial selection
B) Natural selection
C) Mutation
D) Isolation
Answer: B
Peppered moth is an example of:
A) Mutation
B) Natural selection
C) Genetic drift
D) Migration
Answer: B
Evolution occurs due to:
A) Need
B) Desire
C) Genetic changes
D) Habit
Answer: C
Which is evidence of evolution?
A) DNA
B) Fossils
C) Anatomy
D) All of these
Answer: D
Comparative anatomy studies:
A) Fossils
B) Body structures
C) Genes
D) Cells
Answer: B
Embryology supports evolution by:
A) Showing similarities in embryos
B) Showing differences
C) Mutation
D) Isolation
Answer: A
Molecular biology supports evolution through:
A) DNA comparison
B) Fossils
C) Anatomy
D) Ecology
Answer: A
Coevolution occurs between:
A) Unrelated species
B) Interacting species
C) Cells
D) Genes
Answer: B
Extinction means:
A) Growth
B) Death of all members
C) Mutation
D) Adaptation
Answer: B
Gradualism suggests evolution is:
A) Rapid
B) Slow and steady
C) Random
D) Sudden
Answer: B
Punctuated equilibrium suggests:
A) Slow change
B) Rapid bursts
C) No change
D) Continuous change
Answer: B
Which scientist proposed inheritance of acquired traits?
A) Darwin
B) Lamarck
C) Mendel
D) Watson
Answer: B
Lamarck’s theory was based on:
A) Natural selection
B) Use and disuse
C) Mutation
D) Drift
Answer: B
Evolutionary relationships are shown by:
A) Graphs
B) Phylogenetic trees
C) Tables
D) Charts
Answer: B
Common ancestor means:
A) Same species
B) Shared origin
C) Mutation
D) Isolation
Answer: B
Which is NOT a source of variation?
A) Mutation
B) Recombination
C) Cloning
D) Gene flow
Answer: C
50. Evolution explains:
A) Origin of life
B) Diversity of life
C) Cell structure
D) Respiration
Answer: B