22 Questions
What is the primary source of genetic variation in populations according to the passage?
Mutation
How does the passage describe the effect of selection on the frequency of a favored dominant allele?
The frequency changes slowly if the allele is common
What is the main consequence of heterozygote superiority according to the passage?
The favored allele is maintained at high frequencies in the population
How does the passage describe the effect of migration on allele frequencies in a population?
Migration causes allele frequencies to be the weighted average of the two populations
According to the passage, what is the primary factor that prevents the elimination of harmful mutations from a population?
Mutation
Which of the following is NOT mentioned in the passage as a key process in population genetics?
Genetic engineering
Which of the following is a key ancestral process that shapes genetic variation?
All of the above
What is the effect of genetic drift on allele frequencies over generations?
It decreases diversity by making individuals more genetically similar
How does genetic drift affect linkage disequilibrium (LD) between alleles?
It increases LD by creating correlations between alleles
What is the effect of genetic drift on heterozygosity in a population?
It decreases heterozygosity by reducing the frequency of heterozygotes
How does population size affect the rate of genetic drift?
Drift acts faster in smaller populations
Which of the following statements about genetic drift is true?
It is the only process that can lead to the fixation or loss of alleles
Which of the following is NOT one of the conditions required for the Hardy-Weinberg principle to hold true?
Genetic drift is occurring in the population
Huntington's disease is an example of which type of genetic disorder?
Single-locus disorder
What is the primary cause of genetic variation within a population?
Mutation
In the Hardy-Weinberg principle, what does the letter 'p' represent?
The frequency of the dominant allele
Which of the following is NOT a consequence of violating the Hardy-Weinberg assumptions?
The population size will decrease
What is the term used to describe the mating of individuals that are more closely related than expected by chance?
Inbreeding
In a population with two alleles, A and a, what is the frequency of heterozygous individuals (Aa) if the frequency of the dominant allele (A) is 0.6?
0.48
Which of the following population genetic models assumes that populations are infinitely large and that migration, mutation, and selection do not occur?
Hardy-Weinberg model
What is the process by which new genetic combinations are generated through the exchange of genetic material between homologous chromosomes during meiosis?
Recombination
Which of the following is NOT a force that can cause changes in allele frequencies within a population?
Meiosis
Test your understanding of selection, adaptation, and genetic predictions with this quiz on molecular evolution and population genetics. Explore the challenges of globalizing genetic predictions of health and disease while learning about natural and artificial selection.
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