ENVS 212 Evolution Exam 2 Questions with Correct Answers
Bergmann's Rule Correct Answer-Body sizes of mammals and bird increase with distance from the equator (clines across large geographic areas)
gene flow Correct Answer-Movement of alleles into or out of a population due to the migration of individuals to or from the population
Fixation Index (Fst) Correct Answer-measures fraction of total genetic variance across two or more populations resulting from genetic differences between them
gene swamping Correct Answer-when migration onto an island is much stronger than selection (s<<m) frequency of local alleles evolves to zero,
swamping is basically when gene flow overwhelms local adaptation
tension zone Correct Answer-Clines that form when there is selection against heterozygotes
Biological Species Concept (BSC) Correct Answer-Defines species as groups of interbreeding populations that are reproductively isolated
Morphological Species Concept Correct Answer-A definition of species in terms of measurable anatomical criteria. Evolutionary Species Concept Correct Answer-A species is a single lineage of ancestral descendant populations of organisms that maintains its identity from other such lineages and which has its own evolutionary tendencies and historical fate.
Recognition Species Concept (RSC) Correct Answer-a set of organisms that recognize each other as potential mates
Phylogenetic Species Concept (PSC) Correct Answer-A species is the smallest diagnosable cluster of individual organisms within which there is a parental pattern of ancestry and descent
allopatric speciation by vicariance Correct Answer-slow form of speciation in which two groups are geographically isolated
allopatric speciation by dispersal Correct Answer-fast form of speciation
in which two groups are geographically isolated
parapatric speciation Correct Answer-speciation pattern in which populations speciate while in contact along a common border
sympatric speciation Correct Answer-The formation of new species in populations that live in the same geographic area
primary hybrid zone Correct Answer-hybrid zone that occurs in parapatric speciation
Bergmann's Rule Correct Answer-Body sizes of mammals and bird increase with distance from the equator (clines across large geographic areas)
gene flow Correct Answer-Movement of alleles into or out of a population due to the migration of individuals to or from the population
Fixation Index (Fst) Correct Answer-measures fraction of total genetic variance across two or more populations resulting from genetic differences between them
gene swamping Correct Answer-when migration onto an island is much stronger than selection (s<<m) frequency of local alleles evolves to zero,
swamping is basically when gene flow overwhelms local adaptation
tension zone Correct Answer-Clines that form when there is selection against heterozygotes
Biological Species Concept (BSC) Correct Answer-Defines species as groups of interbreeding populations that are reproductively isolated
Morphological Species Concept Correct Answer-A definition of species in terms of measurable anatomical criteria. Evolutionary Species Concept Correct Answer-A species is a single lineage of ancestral descendant populations of organisms that maintains its identity from other such lineages and which has its own evolutionary tendencies and historical fate.
Recognition Species Concept (RSC) Correct Answer-a set of organisms that recognize each other as potential mates
Phylogenetic Species Concept (PSC) Correct Answer-A species is the smallest diagnosable cluster of individual organisms within which there is a parental pattern of ancestry and descent
allopatric speciation by vicariance Correct Answer-slow form of speciation in which two groups are geographically isolated
allopatric speciation by dispersal Correct Answer-fast form of speciation
in which two groups are geographically isolated
parapatric speciation Correct Answer-speciation pattern in which populations speciate while in contact along a common border
sympatric speciation Correct Answer-The formation of new species in populations that live in the same geographic area
primary hybrid zone Correct Answer-hybrid zone that occurs in parapatric speciation
