BIO 182 – ASU EXAM 2 EXAM WITH
CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS
LATEST ALREADY GRADED A+
What happens when populations come back into contact? -
ANSWERS--populations mix
-selection reinforces isolation
How can sympatric populations evolve reproductive
isolation? - ANSWERS-not very easily
what factors would promote sympatric speciation -
ANSWERS-physical lineage of alleles
magic alleles
phylogeny - ANSWERS-pattern of lineage produced by
speciation
, How do we know evolutionary relationships among species?
- ANSWERS-We don't. But we can generate hypotheses
Phenetics - ANSWERS-Grouping is based on phenotypic
similarity
Cladistics - ANSWERS-Grouping is based on common
ancestry
outgroup - ANSWERS-species closely related to the in-group
but less closely related than of those in the in-group
What do we assume when building super trees? -
ANSWERS-Subtrees are correct
Each nucleotide represents? - ANSWERS-the state of a single
trait
Phylogeny depends on? - ANSWERS-The gene
Organisms such as the Antarctic fish can live at extremely
low temperatures. Which mechanism best describes how
they do this?
CORRECT ACTUAL QUESTIONS AND
CORRECTLY WELL DEFINED ANSWERS
LATEST ALREADY GRADED A+
What happens when populations come back into contact? -
ANSWERS--populations mix
-selection reinforces isolation
How can sympatric populations evolve reproductive
isolation? - ANSWERS-not very easily
what factors would promote sympatric speciation -
ANSWERS-physical lineage of alleles
magic alleles
phylogeny - ANSWERS-pattern of lineage produced by
speciation
, How do we know evolutionary relationships among species?
- ANSWERS-We don't. But we can generate hypotheses
Phenetics - ANSWERS-Grouping is based on phenotypic
similarity
Cladistics - ANSWERS-Grouping is based on common
ancestry
outgroup - ANSWERS-species closely related to the in-group
but less closely related than of those in the in-group
What do we assume when building super trees? -
ANSWERS-Subtrees are correct
Each nucleotide represents? - ANSWERS-the state of a single
trait
Phylogeny depends on? - ANSWERS-The gene
Organisms such as the Antarctic fish can live at extremely
low temperatures. Which mechanism best describes how
they do this?