BIO 152 MODULE 6 EXAM 2026
COMPREHENSIVE ASSESSMENT SCRIPT
SOLVED QUESTIONS ANSWERS UPDATED
REVIEW SET
◉ What produces gene flow?
Answer: mating between populations
◉ If all fruit flies have similar appearances, what evidence supports
the hypothesis that a male and female fruit fly are the same species?
Answer: production of viable offspring that also produce offspring
◉ Which example describes mechanical reproductive isolation?
Answer: Two fly species have differently shaped genitals that
prevent interspecies mating.
◉ What concept is illustrated by the California tarweed seeds
reaching the Hawaiian Islands and resulting in a new species?
Answer: the founder effect
◉ rapid natural selection that leads to divergence
Answer: punctualism
,◉ True or false: To be considered different species, two populations
must accumulate genetic differences over a minimum of 100 years.
Answer: false
◉ True or false: Evolutionary change will occur rapidly in a founder
population with a small gene pool.
Answer: true
◉ Which scenario best describes the terms "subspecies" and "race"?
Answer: two populations of orange birds are separated by a
mountain but could still produce offspring
◉ What comparisons could be made for two populations of hyena
considered to be different subspecies?
Answer: They could produce fertile offspring together.
◉ What conclusion results when alleles among different human
groups are analyzed?
Answer: No race-specific alleles and no consistent patterns of allele
frequencies exist within racial groups.
◉ About how long have modern humans existed?
, Answer: 250,000 years
◉ What is population genetics?
Answer: the study of effect of evolutionary change on allele
frequencies
◉ To support the hypothesis that two groups are different races,
who would carry unique alleles?
Answer: a significant number of one group's members
◉ According to the classifications used by most genetic ancestry
testing companies, which human population group includes Native
Americans?
Answer: asians
◉ Which individuals have the greatest fitness in an area where
malaria is common?
Answer: individuals heterozygous for the normal and sickle cell
anemia alleles
◉ What is the evolutionary origin of light skin in humans?
Answer: Light skin evolved several times in response to low
ultraviolet light levels.
COMPREHENSIVE ASSESSMENT SCRIPT
SOLVED QUESTIONS ANSWERS UPDATED
REVIEW SET
◉ What produces gene flow?
Answer: mating between populations
◉ If all fruit flies have similar appearances, what evidence supports
the hypothesis that a male and female fruit fly are the same species?
Answer: production of viable offspring that also produce offspring
◉ Which example describes mechanical reproductive isolation?
Answer: Two fly species have differently shaped genitals that
prevent interspecies mating.
◉ What concept is illustrated by the California tarweed seeds
reaching the Hawaiian Islands and resulting in a new species?
Answer: the founder effect
◉ rapid natural selection that leads to divergence
Answer: punctualism
,◉ True or false: To be considered different species, two populations
must accumulate genetic differences over a minimum of 100 years.
Answer: false
◉ True or false: Evolutionary change will occur rapidly in a founder
population with a small gene pool.
Answer: true
◉ Which scenario best describes the terms "subspecies" and "race"?
Answer: two populations of orange birds are separated by a
mountain but could still produce offspring
◉ What comparisons could be made for two populations of hyena
considered to be different subspecies?
Answer: They could produce fertile offspring together.
◉ What conclusion results when alleles among different human
groups are analyzed?
Answer: No race-specific alleles and no consistent patterns of allele
frequencies exist within racial groups.
◉ About how long have modern humans existed?
, Answer: 250,000 years
◉ What is population genetics?
Answer: the study of effect of evolutionary change on allele
frequencies
◉ To support the hypothesis that two groups are different races,
who would carry unique alleles?
Answer: a significant number of one group's members
◉ According to the classifications used by most genetic ancestry
testing companies, which human population group includes Native
Americans?
Answer: asians
◉ Which individuals have the greatest fitness in an area where
malaria is common?
Answer: individuals heterozygous for the normal and sickle cell
anemia alleles
◉ What is the evolutionary origin of light skin in humans?
Answer: Light skin evolved several times in response to low
ultraviolet light levels.
