subject

Population Genetics

Biology ⇒ Genetics and Heredity

Population Genetics starts at 11 and continues till grade 12. QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Population Genetics. How you perform is determined by your score and the time you take. When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 11
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?
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.
Explain why small populations are more susceptible to genetic drift.
If p = 0.4 and q = 0.6 in a population, what is the expected frequency of homozygous recessive individuals under Hardy-Weinberg equilibrium?
If the frequency of allele A is 0.7 in a population, what is the frequency of allele a?
If the frequency of genotype AA is 0.49, what is the frequency of allele A?
In a population of 100 individuals, 36 are homozygous dominant (AA), 48 are heterozygous (Aa), and 16 are homozygous recessive (aa). What is the frequency of the A allele?
In a population, the frequency of allele B is 0.8. What is the expected frequency of genotype BB under Hardy-Weinberg equilibrium?
The Hardy-Weinberg equation is p² + 2pq + q² = 1. What does 2pq represent?
What does the term 'fixation' mean in population genetics?
What is the effect of gene flow between two populations?
What is the formula for calculating allele frequencies in a population with two alleles, A and a?
What is the main consequence of inbreeding in a population?