These questions will help you prepare for the lesson quiz. Be sure to read the feedback carefully for any questions you answer incorrectly, and review those topics before leaving this lesson and taking the quiz.
If the allele for a purple tail (t) is recessive to the allele for a green tail (T), what will be the relative frequency of t in a population?
- It could only be more frequent than T.
- It could only be less frequent than T.
- It could only be equally as frequent as T.
- It could be more or less frequent than T.
As demonstrated by the Hardy-Weinberg principle, the dominance or recessiveness of an allele does not determine its frequency in a population.
As demonstrated by the Hardy-Weinberg principle, the dominance or recessiveness of an allele does not determine its frequency in a population.
As demonstrated by the Hardy-Weinberg principle, the dominance or recessiveness of an allele does not determine its frequency in a population.
As demonstrated by the Hardy-Weinberg principle, the dominance or recessiveness of an allele does not determine its frequency in a population.
Why do genotype frequencies change from one generation to the next?
- because of evolutionary forces
- because of Hardy-Weinberg equilibrium
- because of recessive alleles
- because of dominant alleles
When a population is in Hardy-Weinberg equilibrium, it is not evolving, and its allele and genotype frequencies stay constant from generation to generation.
When a population is in Hardy-Weinberg equilibrium, it is not evolving, and its allele and genotype frequencies stay constant from generation to generation.
When a population is in Hardy-Weinberg equilibrium, it is not evolving, and its allele and genotype frequencies stay constant from generation to generation.
When a population is in Hardy-Weinberg equilibrium, it is not evolving, and its allele and genotype frequencies stay constant from generation to generation.
Which of the following factors will not disrupt the Hardy-Weinberg equilibrium?
- dominant alleles
- migration of new individuals
- sexual selection
- natural selection
A population can be in Hardy-Weinberg equilibrium only if it has no evolutionary forces acting on it.
A population can be in Hardy-Weinberg equilibrium only if it has no evolutionary forces acting on it.
A population can be in Hardy-Weinberg equilibrium only if it has no evolutionary forces acting on it.
A population can be in Hardy-Weinberg equilibrium only if it has no evolutionary forces acting on it.
How many humans are there in a population that contains 80 alleles for each gene?
- 40
- 80
- 160
- 6400
Humans are diploid, so there are two alleles per gene per person.
Humans are diploid, so there are two alleles per gene per person.
Humans are diploid, so there are two alleles per gene per person.
Humans are diploid, so there are two alleles per gene per person.
If there are 10 dominant alleles for a gene in a population of 50 squid, what is the frequency of the recessive allele? Assume the squid is diploid.
- 0.05
- 0.20
- 0.50
- 0.90
Allele frequency is calculated by dividing the number of times that allele appears by the total number of alleles for that gene.
Allele frequency is calculated by dividing the number of times that allele appears by the total number of alleles for that gene.
Allele frequency is calculated by dividing the number of times that allele appears by the total number of alleles for that gene.
Allele frequency is calculated by dividing the number of times that allele appears by the total number of alleles for that gene.
If the frequency of the dominant allele for a gene is 0.1, what is the expected frequency of homozygous dominant individuals in the next generation if the population is in Hardy-Weinberg equilibrium?
- 0.01
- 0.10
- 0.20
- 0.90
The expected genotype frequencies in a population can be calculated from the allele frequencies using the Hardy-Weinberg equation: p2 + 2pq + q2 = 1.
The expected genotype frequencies in a population can be calculated from the allele frequencies using the Hardy-Weinberg equation: p2 + 2pq + q2 = 1.
The expected genotype frequencies in a population can be calculated from the allele frequencies using the Hardy-Weinberg equation: p2 + 2pq + q2 = 1.
The expected genotype frequencies in a population can be calculated from the allele frequencies using the Hardy-Weinberg equation: p2 + 2pq + q2 = 1.
Summary
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