1. Phylogenetics is the study of:
(A) Soil nutrient cycling
(B) Evolutionary relationships among organisms
(C) Photosynthesis only
(D) Energy flow in ecosystems
2. The diagram representing evolutionary relationships is called:
(A) Energy pyramid
(B) Soil profile
(C) Phylogenetic tree
(D) Food web
3. A clade includes:
(A) Only extinct species
(B) Only one species
(C) Unrelated species
(D) An ancestor and all its descendants
4. Monophyletic groups contain:
(A) Single species only
(B) Only some descendants
(C) Multiple unrelated species
(D) An ancestor and all its descendants
5. Paraphyletic groups contain:
(A) An ancestor and some, but not all, descendants
(B) All descendants of a common ancestor
(C) Only unrelated species
(D) Only extinct species
6. Polyphyletic groups contain:
(A) An ancestor and all descendants
(B) Species from different ancestors
(C) Single species only
(D) Fossil species only
7. Homologous characters indicate:
(A) Soil adaptation only
(B) Similar function only
(C) Random traits
(D) Common ancestry
8. Analogous characters indicate:
(A) Similar function but different evolutionary origin
(B) Same ancestry only
(C) Random variation only
(D) Soil traits only
9. Cladistics classifies organisms based on:
(A) Shared derived characters (synapomorphies)
(B) Overall similarity only
(C) Fossil age only
(D) Soil type only
10. Synapomorphy refers to:
(A) Shared derived character among two or more lineages
(B) Shared ancestral trait
(C) Unique derived trait
(D) Random mutation only
11. Symplesiomorphy refers to:
(A) Derived trait
(B) Shared ancestral trait
(C) Fossil trait only
(D) Soil adaptation only
12. Autapomorphy refers to:
(A) Random trait only
(B) Shared ancestral trait
(C) Fossil-only trait
(D) Unique derived trait in a single lineage
13. Molecular phylogenetics uses:
(A) Photosynthesis rates only
(B) Fossils only
(C) Soil characteristics only
(D) DNA, RNA, and protein sequences to study evolutionary relationships
14. Morphological phylogenetics is based on:
(A) Energy flow only
(B) DNA sequences only
(C) Soil characteristics only
(D) Physical characters of organisms
15. Phylograms represent:
(A) Photosynthesis pathways
(B) Soil layers
(C) Energy pyramids
(D) Evolutionary relationships with branch lengths proportional to evolutionary change
16. Cladograms represent:
(A) Energy flow
(B) Soil profiles
(C) Photosynthesis rates
(D) Hypothesized evolutionary relationships without branch length information
17. Molecular clocks estimate:
(A) Photosynthesis rate
(B) Soil formation time
(C) Divergence times based on genetic differences
(D) Fossil weight
18. Outgroup comparison in phylogenetics is used to:
(A) Measure photosynthesis
(B) Identify fossils only
(C) Determine ancestral versus derived characters
(D) Measure soil nutrients
19. Convergent evolution results in:
(A) Analogous traits in unrelated species
(B) Homologous traits only
(C) Shared ancestral traits only
(D) Soil adaptation traits
20. Divergent evolution results in:
(A) Random mutations only
(B) Analogous traits only
(C) Homologous traits in related species
(D) Fossil traits only
21. Bootstrapping in phylogenetic analysis is used to:
(A) Measure photosynthesis
(B) Assess confidence in tree branches
(C) Analyze soil layers
(D) Fossil dating only
22. Maximum parsimony method chooses the tree with:
(A) Most evolutionary changes
(B) Fewest evolutionary changes
(C) Random arrangement
(D) Fossil-only information
23. Maximum likelihood in phylogenetics uses:
(A) Soil nutrients only
(B) Statistical probability models for tree construction
(C) Photosynthesis rates only
(D) Fossil age only
24. Bayesian inference in phylogenetics uses:
(A) Photosynthesis data only
(B) Soil properties only
(C) Probability models and prior information to estimate tree
(D) Fossil-only approach
25. Monophyletic groups are also called:
(A) Paraphyletic groups
(B) Polyphyletic groups
(C) Clades
(D) Species complexes
26. Polyphyletic groups are considered:
(A) Single species only
(B) Natural and valid
(C) Artificial and unnatural
(D) Fossil-only groups
27. Phylogenetic systematics aims to:
(A) Focus only on soil adaptation
(B) Focus only on morphology
(C) Reflect evolutionary history in classification
(D) Study photosynthesis only
28. Molecular data is particularly useful for:
(A) Energy studies only
(B) Soil analysis only
(C) Resolving relationships among closely related species
(D) Fossil dating only
29. Horizontal gene transfer complicates phylogenetic analysis in:
(A) Fungi only
(B) Plants only
(C) Animals only
(D) Bacteria
30. Ribosomal RNA genes are widely used in phylogenetics because:
(A) They exist only in soil microbes
(B) They mutate extremely fast
(C) They are highly conserved
(D) They are only in animals
31. Mitochondrial DNA is useful in phylogenetics for:
(A) Fossil-only studies
(B) Studying soil chemistry
(C) Photosynthesis rate only
(D) Studying recent evolutionary events
32. Chloroplast DNA is used to study phylogeny of:
(A) Fungi only
(B) Animals only
(C) Plants
(D) Bacteria only
33. Single nucleotide polymorphisms (SNPs) are:
(A) Photosynthesis pathways only
(B) Fossil layers only
(C) Soil characteristics only
(D) Useful molecular markers in phylogenetics
34. Gene trees may differ from species trees due to:
(A) Energy flow
(B) Soil variations
(C) Photosynthesis rates
(D) Incomplete lineage sorting
35. Phylogenetic networks are used to:
(A) Photosynthesis measurement
(B) Soil analysis
(C) Represent reticulate evolution
(D) Fossil layers only
36. Parsimony-informative characters are those that:
(A) Are random traits only
(B) Help distinguish among competing tree topologies
(C) Fossil traits only
(D) Soil traits only
37. Molecular systematics can resolve:
(A) Soil layers only
(B) Cryptic species
(C) Photosynthesis only
(D) Energy pyramids only
38. Genetic distance in phylogenetics measures:
(A) Evolutionary divergence between sequences
(B) Soil depth
(C) Photosynthesis efficiency
(D) Fossil age
39. Neighbor-joining method is:
(A) A distance-based tree construction method
(B) Soil testing only
(C) Fossil measurement only
(D) Photosynthesis analysis only
40. Phylogenetic trees can be rooted to:
(A) Measure soil layers
(B) Show direction of evolution
(C) Measure photosynthesis only
(D) Fossil layers only
41. Unrooted trees show:
(A) Soil profile only
(B) Fossil age only
(C) Relationships without direction of evolution
(D) Photosynthesis only
42. Phylogenetic reconstruction is based on:
(A) Soil analysis only
(B) Morphological and molecular characters
(C) Photosynthesis measurement only
(D) Energy pyramids only
43. Reticulate evolution is common in:
(A) Soil bacteria only
(B) Animals only
(C) Fungi only
(D) Plants and microbes
44. Orthologous genes are:
(A) Soil bacteria genes only
(B) Genes in the same species only
(C) Fossil-only genes
(D) Genes in different species that originated from a common ancestor
45. Paralogous genes are:
(A) Soil traits only
(B) Genes in different species
(C) Fossil-only genes
(D) Genes within a species that arose by duplication
46. Long branch attraction is a problem in:
(A) Phylogenetic inference
(B) Soil testing
(C) Photosynthesis only
(D) Fossil measurement only
47. Molecular phylogenetics can be used to:
(A) Study evolutionary history, speciation, and biodiversity
(B) Soil nutrient mapping only
(C) Energy flow study only
(D) Photosynthesis measurement only
48. Cladistic analysis emphasizes:
(A) Soil layers only
(B) Overall similarity only
(C) Fossil abundance only
(D) Shared derived characters
49. Phylogenetic methods help in:
(A) Photosynthesis study only
(B) Soil testing only
(C) Conservation biology by identifying evolutionary significant units
(D) Energy measurement only
50. Understanding phylogenetics is important for:
(A) Photosynthesis measurement only
(B) Soil analysis only
(C) Evolutionary biology, taxonomy, and biodiversity studies
(D) Energy flow only