Evolutionary Biology Practice Questions: Test Your Knowledge | LearnByTeaching.ai
These 40 evolutionary biology practice questions cover natural selection and adaptation, phylogenetics and tree-thinking, speciation and macroevolution, and human evolution. They test your ability to think at the population level, read phylogenetic trees, and distinguish between evolutionary mechanisms.
40 questions total
Natural Selection and Adaptation
Covers mechanisms of evolution, fitness, adaptation, sexual selection, and Hardy-Weinberg equilibrium.
Natural selection acts on:
Which of the following is NOT required for natural selection to occur?
Genetic drift differs from natural selection in that drift:
The Hardy-Weinberg equilibrium assumes all of the following EXCEPT:
Stabilizing selection:
Sexual selection can produce traits that decrease survival because:
Kin selection explains altruistic behavior through:
Frequency-dependent selection occurs when:
The sickle cell allele is maintained in malaria-endemic populations through:
Convergent evolution occurs when:
Phylogenetics and Tree-Thinking
Covers reading phylogenetic trees, cladistics, molecular phylogenetics, and common tree-reading errors.
On a phylogenetic tree, the most recent common ancestor of two species is represented by:
Two species that share a more recent common ancestor than either does with a third species are called:
A common error in reading phylogenetic trees is:
Molecular clocks estimate divergence times based on:
A monophyletic group (clade) includes:
Horizontal gene transfer is particularly important for understanding the evolution of:
Maximum parsimony in phylogenetics selects the tree that:
Homologous structures are evidence for common ancestry because they:
A polytomy on a phylogenetic tree indicates:
Long-branch attraction is a phylogenetic artifact where:
Speciation and Macroevolution
Covers mechanisms of speciation, reproductive isolation, adaptive radiation, and patterns in the fossil record.
Allopatric speciation occurs when:
The biological species concept defines a species as:
Prezygotic reproductive barriers include:
Adaptive radiation occurs when:
Punctuated equilibrium (Eldredge and Gould) proposes that:
Mass extinctions are evolutionary significant because they:
Sympatric speciation (speciation without geographic isolation) is most convincingly documented in:
Coevolution between species is demonstrated by:
Ring species provide evidence for speciation because:
The Cambrian Explosion (~540 Ma) is significant because:
Human Evolution
Covers hominin fossil record, bipedalism, brain evolution, and the emergence of modern humans.
The most recent common ancestor of humans and chimpanzees lived approximately:
Bipedalism (walking upright) preceded large brain size in the hominin fossil record, as shown by:
The 'Out of Africa' model of modern human origins proposes that:
Neanderthals (Homo neanderthalensis) were:
The evolution of large brains in the genus Homo was likely driven by:
Ancient DNA research has revealed that modern humans:
The 'grandmother hypothesis' explains human menopause as:
Homo floresiensis ('the Hobbit') challenged assumptions about human evolution because:
The 'molecular revolution' in understanding human evolution refers to:
Evidence for ongoing natural selection in modern humans includes:
Scoring Guide
Total possible: 40
Study Recommendations
- Practice reading phylogenetic trees until you can identify sister taxa, monophyletic groups, and common ancestors without hesitation
- Work through Hardy-Weinberg problems with different evolutionary forces applied to understand when and why equilibrium breaks down
- Study specific case studies deeply: Darwin's finches, sickle cell and malaria, antibiotic resistance, and cichlid adaptive radiation
- Always think at the population level ā avoid phrases like 'the species evolved to...' which imply goal-directed change
- Use online simulations for genetic drift and natural selection to build intuition about population-level processes
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