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- 1. 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
- 2. Multiple ChoiceIn a type of flower, Red (R) is dominant over white (r). If generation 1 had p=0.6 and q=0.4, and generation 2 had p=0.8 and q=0.2, which generation showed the greatest frequency of having one of each allele?Generation 1Generation 2
- 3. Multiple ChoiceIn a population of bears, the frequency of q is 0.44. What is the frequency of p?0.19360.440.560.22
- 4. Multiple ChoiceWhich is a mechanism for change in allele frequency?gene flowgenetic driftnatural selectionall answers are correct
- 5. Multiple ChoiceThe Hardy-Weinberg Model is?Available at local hobby stores and retailers throughout the Greater Cleveland area.A mathematical tool that biologists can use to predict allele frequencies and determine whether or not evolution is occurring within a population.Always occurring within populations of organisms in nature.Only useful in the lab and cannot be practically applied to real-world populations of organisms.
- 6. Multiple ChoiceWhen a population is in Hardy-Weinberg Equilibrium. What is not happening to the species?SurvivalReproductionDeathEvolution
- 7. Multiple ChoiceWhich of the following is not a condition that needs to be met in order for a population to be in Hardy-Weinberg Equilibrium?No Natural SelectionNo Gene FlowNo Sexual SelectionNo Death or Reproduction
- 8. Multiple ChoiceIn the Hardy-Weinberg Equation, q2 is the frequency of what?The recessive allelethe dominant allelethe recessive genotypethe dominant genotype
- 9. Multiple ChoiceIf 98 out of 200 individuals in a population express the recessive phenotype, what percent of the population would you predict would be heterozygous?70%30%42%49%
- 10. 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
- 11. Multiple Choice
If the frequency of two alleles in a gene pool is 90% A and 10% a, what is the frequency of individuals in the population with the genotype Aa?
0.81
o.09
0.18
1.01
- 12. Multiple Choice
If a population experiences no migration, is very large, has no mutations, has random mating, and there is no selection, which of the following would you predict?
The population will evolve, but much more slowly than normal
The makeup of the population's gene pool will remain virtually the same as long as these conditions hold.
The composition of the population's gene pool will change slowly in a predictable manner.
Dominant alleles in the population's gene pool will slowly increase in frequency while recessive alleles will decrease.
The population probably has an equal frequency of A and a alleles.
- 13. Multiple Choice
Which of the following is NOT a condition that must be met for Hardy-Weinberg equilibrium?
Large population size
No mutations
No immigration or emigration
Dominant alleles are more frequent than recessive alleles
No natural selection
- 14. Multiple Choice
In a population that is in Hardy-Weinberg equilibrium, the frequency of the homozygous recessive genotype is 0.09. What is the frequency of individuals that are homozygous for the dominant allele?
0.7
o.21
0.42
0.49
0.91
- 15. Multiple Choice
In humans, Rh-positive individuals have the Rh antigen on their red blood cells, while Rh-negative individuals do not. If the Rh-positive phenotype is produced by a dominant gene (A), and the Rh-negative phenotype is due to its recessive allele (a), what is the frequency of the Rh-positive allele if 84% of a population is Rh-positive?
0.04
0.16
0.48
0.60
0.84
- 16. Multiple ChoiceIn the Hardy-Weinberg Equation, q2 is the frequency of what?The recessive allelethe dominant allelethe recessive genotypethe dominant genotype
- 17. 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
- 18. Multiple ChoiceWhich Hardy-Weinberg equation represents the genotype frequencies in a population?p + q = 1p2 + 2pq + q2 = 1p2 + pq2 + q2 = 1p + 2pq + q3 = 1
- 19. Multiple ChoiceWhen a population is at Hardy-Weinberg equilibrium, the allele frequencies should remain constant. Which of the following populations is most likely experiencing Hardy-Weinberg equilibrium?When a population is at Hardy-Weinberg equilibrium, the allele frequencies should remain constant. Which of the following populations is most likely experiencing Hardy-Weinberg equilibriumIn a spider population, the males with the most intricate courtship dance get selected as mates more quickly than other male spiders.In a mosquito population, being heterozygous for a given trait makes the individuals resistant to four viral infectionsIn a large moth population, both red and orange moths are consistently abundant
- 20. 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
- 21. Multiple ChoiceGenetic drift is likely to be seen in a populationThat has a low mutation rateIn which natural selection is occurringThat is very smallFor which environmental conditions are changing
- 22. Multiple ChoiceWhich Hardy-Weinberg equation represents the genotype frequencies in a population?p + q = 1p2 + 2pq + q2 = 1p2 + pq2 + q2 = 1p + 2pq + q3 = 1
- 23. Multiple ChoiceWhich Hardy-Weinberg factor represents the frequency of heterozygous individuals in a population?p22pqq2p2 + 2pq
- 24. Multiple ChoiceA population of frogs has 37 individuals who are brown in color and 194 individuals who express the dominant green color. What is the dominant allele frequency for this population?0.20.40.60.8
- 25. Multiple ChoiceWhen a population is at Hardy-Weinberg equilibrium, the allele frequencies should remain constant. Which of the following populations is most likely experiencing Hardy-Weinberg equilibrium?When a population is at Hardy-Weinberg equilibrium, the allele frequencies should remain constant. Which of the following populations is most likely experiencing Hardy-Weinberg equilibriumIn a spider population, the males with the most intricate courtship dance get selected as mates more quickly than other male spiders.In a mosquito population, being heterozygous for a given trait makes the individuals resistant to four viral infectionsIn a large moth population, both red and orange moths are consistently abundant
- 26. Multiple ChoiceIf a population has the following genotype frequencies: AA = 0.42, Aa = 0.46, and aa = 0.12, what are the allele frequencies?A = 0.42, a = 0.12A = 0.6, a = 0.4A = 0.65, a = 0.35A = 0.84, a = 0.24
- 27. Multiple ChoiceGenetic drift is likely to be seen in a populationThat has a low mutation rateIn which natural selection is occurringThat is very smallFor which environmental conditions are changing
- 28. Multiple Choice
Which of the following statements is supported by the graph below?The population is in Hardy-Weinberg equilibrium, as the sum of the frequency of the dominant allele and the recessive allele is always equal to 1The percentage of individuals homozygous recessive for this particular trait is increasing over timeSelection has caused frequencies to change over time because individuals with a dominant allele survive at higher rates than individuals with recessive allelesIndividuals who are homozygous recessive for this particular trait have migrated into the population, causing the frequency to approach 1 - 29. Multiple ChoiceWithin a population of 500 butterflies, the color purple is dominant over the color white. 200 of the butterflies are white. What is the frequency of homozygous dominant individuals? Give your answer as a decimal to the nearest hundredth..40.36.16.60
- 30. Multiple ChoiceCystic fibrosis is a recessive condition that affects about 1 in 2,500 babies in the Caucasian population of the United States. Calculate the frequency of heterozygous individuals (carriers) in the U.S. population. Give your answer as a decimal to the nearest hundredth..98.06.02.04
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