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BIO 182 – ASU | ACTUAL EXAM |
QUESTIONS AND CORRECT ANSWERS
Adaptive plasticity -CORRECT ANSWER- one genotype has multiple phenotypes &
environments trigger change
Genetic drift -CORRECT ANSWER- evolution caused by random processes in
population in a population of finite size
Do smaller or larger populations have more chance for genetic drift? -CORRECT
ANSWER- smaller populations
Homology -CORRECT ANSWER- phenotype that is similar between two species
because of common ancestry
Homoplasy -CORRECT ANSWER- phenotype that is similar between two species
because of convergent evolution
Parsimony -CORRECT ANSWER- the simplest explanation is the best (fewest
evolutionary transitions) a-->b-->c = common a-->b-->a = uncommon
Migration load -CORRECT ANSWER- maintenance of deleterious alleles by
migration
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Which traits are more informative? -CORRECT ANSWER- shared derived traits
(synapomorphy)
Which traits provide no information? -CORRECT ANSWER- shared ancestral traits
(pleisiomorphy)
Which traits provide false info? -CORRECT ANSWER- convergent traits
(homoplasy)
Allopatry -CORRECT ANSWER- populations occur in different places
Sympatry -CORRECT ANSWER- populations occur at the same place same time
Plasticity -CORRECT ANSWER- ability of one genotype to produce more than one
phenotype when exposed to different environments
Genetic drift can do what to neutral alleles -CORRECT ANSWER- eliminate &
spread
What random processes cause genetic drift? -CORRECT ANSWER- -independent
assortment of alleles
-random variation in survival
-random variation in mating success
-random variation in fecundity
BIO 182 – ASU | ACTUAL EXAM |
QUESTIONS AND CORRECT ANSWERS
Adaptive plasticity -CORRECT ANSWER- one genotype has multiple phenotypes &
environments trigger change
Genetic drift -CORRECT ANSWER- evolution caused by random processes in
population in a population of finite size
Do smaller or larger populations have more chance for genetic drift? -CORRECT
ANSWER- smaller populations
Homology -CORRECT ANSWER- phenotype that is similar between two species
because of common ancestry
Homoplasy -CORRECT ANSWER- phenotype that is similar between two species
because of convergent evolution
Parsimony -CORRECT ANSWER- the simplest explanation is the best (fewest
evolutionary transitions) a-->b-->c = common a-->b-->a = uncommon
Migration load -CORRECT ANSWER- maintenance of deleterious alleles by
migration
, Page |2
Which traits are more informative? -CORRECT ANSWER- shared derived traits
(synapomorphy)
Which traits provide no information? -CORRECT ANSWER- shared ancestral traits
(pleisiomorphy)
Which traits provide false info? -CORRECT ANSWER- convergent traits
(homoplasy)
Allopatry -CORRECT ANSWER- populations occur in different places
Sympatry -CORRECT ANSWER- populations occur at the same place same time
Plasticity -CORRECT ANSWER- ability of one genotype to produce more than one
phenotype when exposed to different environments
Genetic drift can do what to neutral alleles -CORRECT ANSWER- eliminate &
spread
What random processes cause genetic drift? -CORRECT ANSWER- -independent
assortment of alleles
-random variation in survival
-random variation in mating success
-random variation in fecundity
