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 12
Define gene pool.
Define genetic drift.
Describe the effect of assortative mating on genotype frequencies.
Explain the difference between genetic drift and natural selection.
Explain the founder effect.
Explain why mutation alone is usually a weak evolutionary force.
Explain why small populations are more susceptible to genetic drift.
A population has 16% individuals with genotype aa. Assuming Hardy-Weinberg equilibrium, what is the frequency of allele a?
A population has allele frequencies p = 0.3 and q = 0.7. What is the expected frequency of genotype qq?
A population has the following genotype frequencies: 0.25 AA, 0.50 Aa, 0.25 aa. What is the frequency of allele A?
A population of 1000 individuals has 360 AA, 480 Aa, and 160 aa genotypes. What is the frequency of allele a?
Which evolutionary force is most likely to increase genetic variation in a population? (1) Genetic drift (2) Mutation (3) Inbreeding (4) Bottleneck effect
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 stabilizing selection? (1) Favors extreme phenotypes (2) Favors intermediate phenotypes (3) Favors rare alleles (4) Favors new mutations
Which of the following best describes the term 'genetic structure' of a population? (1) The physical arrangement of chromosomes (2) The distribution of genotypes and alleles in a population (3) The number of individuals in a population (4) The mutation rate in a population
The Hardy-Weinberg equilibrium describes a population in which ________ do not change from generation to generation.
True or False: Directional selection can lead to a shift in the mean phenotype of a population.
True or False: Genetic drift has a greater effect on small populations than on large populations.
True or False: Migration can alter allele frequencies in a population.
True or False: Natural selection always increases genetic variation in a population.
