Population Genetics
Biology ⇒ Genetics and Heredity
Population Genetics starts at 11 and continues till grade 12.
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See sample questions for grade 11
Define gene pool.
Define genetic drift.
Describe how migration can affect allele frequencies in a population.
Describe the effect of a population bottleneck on genetic variation.
Explain the difference between allele frequency and genotype frequency.
Explain the founder effect.
A population is in Hardy-Weinberg equilibrium. If the frequency of allele a is 0.2, what is the frequency of genotype Aa?
A population of 200 individuals has 120 AA, 60 Aa, and 20 aa. What is the frequency of allele a?
A population of 500 individuals has 100 individuals with genotype aa. What is the frequency of genotype aa?
If the frequency of genotype AA is 0.49, what is the frequency of allele A?
Which evolutionary force is most likely to increase genetic differences between two populations? (1) Gene flow (2) Genetic drift (3) Mutation (4) Non-random mating
Which of the following best defines population genetics? (1) The study of how genes are inherited in individuals (2) The study of genetic variation within populations (3) The study of DNA replication (4) The study of protein synthesis
Which of the following best describes disruptive selection? (1) Favors average individuals (2) Favors individuals at both extremes (3) Favors one extreme only (4) Reduces genetic variation
Which of the following is an example of a population in Hardy-Weinberg equilibrium? (1) A population with random mating and no selection (2) A population with frequent mutations (3) A population with strong natural selection (4) A population with a recent bottleneck
If a population is not evolving, it is said to be in ________ equilibrium.
The Hardy-Weinberg equilibrium describes a population in which ________ do not change from generation to generation.
True or False: Directional selection favors individuals at one extreme of a trait distribution.
True or False: Genetic drift has a greater effect on small populations than on large populations.
True or False: Mutation alone is usually a strong force for changing allele frequencies in large populations.
True or False: Natural selection always increases genetic variation in a population.
