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- 1. Multiple ChoiceWhen a population is in Hardy-Weinberg equilibrium, what is NOT happening to the species?SurvivalReproductionDeathEvolution
- 2. Multiple ChoiceGene flow involvesNatural disasters killing most of the members of a populationIndividuals moving into and out of the populationSelective matingSmall changes because of the environment
- 3. Multiple ChoiceA chance occurrence that negatively affects a population because the population is small.genetic driftmutationspeciationmigration
- 4. Multiple ChoiceMutations are important because they bring aboutdeath of the organism in which they developgenetic variation needed for a population to evolvebenefits for the individual, not for the populationHardey-Weinberg equilibrium within a population
- 5. Multiple ChoiceWhich organisms are most likely to survive?the best adaptedthe fastestthe strongestthe most domesticated (tamed)
- 6. Multiple ChoiceWhat do you call all of the genes in a population?Gene poolRelative FrequencyGenetic DriftAllele pool
- 7. Multiple Choice
What type of genetic drift is most common after a natural disaster which results in a drastic reduction in population size?
Bottleneck Effect
Founders Effect
Gene Flow
Sexual Selection
- 8. Multiple Choice
What type of genetic drift is characterized by a small subgroup of a population leaving and forming a new population?
Gene Flow
Bottleneck Effect
Sexual Selection
Founders Effect
- 9. Multiple Choice
Hunting reduced the population size of the northern elephant seal to as few as 20 individuals at the end of the 19th century. Their population has since rebounded to over 30,000, but much have less genetic variation than a population of southern elephant seals that were not intensely hunted. How is the lack of genetic variation related to the hunting episodes of the 1800's?
Genetic Drift Occurred/Genetic Bottleneck: the few individuals left behind were the seals that passed on the specific gene pool.
Genetic Drift Occurred/Founder Effect: the few individuals left behind were the seals that passed on the specific gene pool.
Natural Selection Occurred/Survival of the Fittest: only the strongest northern elephant seals survived in the 1800's and that restricted gene pool exists today.
Adaptation Occurred: Some seals were able to adapt to the hunting environment and they survived to pass on their genes.
- 10. Multiple Choice
The measure of an organisms's ability to survive and produce offspring relative to other members of a population is
Natural Selection
Adaptation
Biological Fitness
Variation
- 11. Multiple Choice
Favorable genetic traits are passed on causing a survival advantage in a particular environment.
speciation
natural selection
cladogram
inherent danger
- 12. Multiple Choice
A diagram that shows the theory of Evolution from a Common Ancestor.
Phylogenetic Tree
Natural Selection
Artificial Selection
Branching Tree
- 13. Multiple Choice
Within a species, there can be changes in allele frequency causing variation.
Microevolution
Macroevolution
Involuntary Contraction
All of the above
- 14. Multiple Choice
Which trait do only humans have, according to the cladogram?
jaws
mammary glands & hair
terrestrial during all life stages
bipedal & opposable thumbs
- 15. Multiple Choice
According to this cladogram, sharks are MOST closely related to which organism?
Amphibians
Ray finned fish
Crocodiles
Birds
- 16. Multiple Choice
The number of times a particular allele appears in a gene pool is known as the
population of the allele
relative percentage of the allele
frequency of the allele
evolution of the allele
- 17. Multiple Choice
Which answer is more appropriate?
Traits are good or bad.
Traits can be harmful or hurtful depending on the environment.
Traits are always helpful or hurtful, regardless of the environment.
Traits are helpful or bad.
- 18. Multiple ChoiceIn the Hardy-Weinberg Equation, q2 is the frequency of what?The recessive allelethe dominant allelethe recessive genotypethe dominant genotype
- 19. Multiple ChoiceWhat does the variable q represent?Frequency of the heterozygote genotypeFrequency of the homozygous recessive genotypeThe frequency of the recessive alleleThe frequency of the dominant allele
- 20. Multiple Choice
If 49 out of 100 individuals in a population express the recessive phenotype, 49/100 or 0.49 would represent
p
p2
q
q2
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