BIO 211 EXAM 5 (STEWART ISU)
QUESTIONS & ACCURATE
COMPLETE SOLUTIONS
What is evolution - correct answer ✔✔Change in frequency of alleles in a population over time
gene - correct answer ✔✔DNA segment containing instructions for producing heritable traits
allele - correct answer ✔✔variant form of a gene
phenotype - correct answer ✔✔observed form of a heritable trait
population - correct answer ✔✔all individuals of the same species inhabiting the same
geographic area
species - correct answer ✔✔a group of individuals capable of interbreeding
Evolution is possible if? - correct answer ✔✔genetic variability exists in the population
Alleles are produced by ___________. - correct answer ✔✔mutations
species that existed in the past are? - correct answer ✔✔ancestors of existing species
Evidence for Evolution - correct answer ✔✔-structural similarities imply common ancestry
-Developmental similarity
, -genetic similarities imply common ancestry
-Observed in artificial selection and drug resistant bacteria
4 evolutionary processes - correct answer ✔✔-natural selection
-genetic drift
-gene flow
-mutation
mutation is? - correct answer ✔✔a change in the nucleotide sequence of DNA
consequences of mutation - correct answer ✔✔-harmful or neutral effects
-non-harmful alleles have evolutionary potential, increasing the likelihood that population
survives environmental change
natural selection is?
Give an example - correct answer ✔✔1-a favorable heritable phenotype/adaption produces the
most surviving offspring
2-TB becoming abo-resistant
Consequences of Natural Selection - correct answer ✔✔adaptive heritable traits become or
remain more common
fitness - correct answer ✔✔number of offspring produced by an individual relative to other
members of the population
adaptation - correct answer ✔✔increases fitness
QUESTIONS & ACCURATE
COMPLETE SOLUTIONS
What is evolution - correct answer ✔✔Change in frequency of alleles in a population over time
gene - correct answer ✔✔DNA segment containing instructions for producing heritable traits
allele - correct answer ✔✔variant form of a gene
phenotype - correct answer ✔✔observed form of a heritable trait
population - correct answer ✔✔all individuals of the same species inhabiting the same
geographic area
species - correct answer ✔✔a group of individuals capable of interbreeding
Evolution is possible if? - correct answer ✔✔genetic variability exists in the population
Alleles are produced by ___________. - correct answer ✔✔mutations
species that existed in the past are? - correct answer ✔✔ancestors of existing species
Evidence for Evolution - correct answer ✔✔-structural similarities imply common ancestry
-Developmental similarity
, -genetic similarities imply common ancestry
-Observed in artificial selection and drug resistant bacteria
4 evolutionary processes - correct answer ✔✔-natural selection
-genetic drift
-gene flow
-mutation
mutation is? - correct answer ✔✔a change in the nucleotide sequence of DNA
consequences of mutation - correct answer ✔✔-harmful or neutral effects
-non-harmful alleles have evolutionary potential, increasing the likelihood that population
survives environmental change
natural selection is?
Give an example - correct answer ✔✔1-a favorable heritable phenotype/adaption produces the
most surviving offspring
2-TB becoming abo-resistant
Consequences of Natural Selection - correct answer ✔✔adaptive heritable traits become or
remain more common
fitness - correct answer ✔✔number of offspring produced by an individual relative to other
members of the population
adaptation - correct answer ✔✔increases fitness
