Podcast
Questions and Answers
What are the allele frequencies for the CR and CW alleles in the population of 500 wildflowers?
What are the allele frequencies for the CR and CW alleles in the population of 500 wildflowers?
- 0.5 and 0.5
- 0.6 and 0.4
- 0.8 and 0.2 (correct)
- 0.7 and 0.3
Which equation represents the Hardy-Weinberg equilibrium?
Which equation represents the Hardy-Weinberg equilibrium?
- $p + q = 1$
- $p^2 + 2pq + q^2 = 1$ (correct)
- $p^2 + q^2 = 1$
- $p^2 - 2pq - q^2 = 1$
What does the value of $p^2$ represent in the Hardy-Weinberg equilibrium equation?
What does the value of $p^2$ represent in the Hardy-Weinberg equilibrium equation?
- Frequency of heterozygous genotype
- Frequency of homozygous genotype for allele CR (correct)
- Sum of allele frequencies
- Frequency of homozygous genotype for allele CW
What condition is necessary for a gene pool to be in Hardy-Weinberg equilibrium?
What condition is necessary for a gene pool to be in Hardy-Weinberg equilibrium?
What causes most evolutionary changes in a population?
What causes most evolutionary changes in a population?
Which factor can result in the evolutionary change of a population?
Which factor can result in the evolutionary change of a population?
In population genetics, what is the genotype frequency?
In population genetics, what is the genotype frequency?
What does a fixed allele in a population mean?
What does a fixed allele in a population mean?
What is the term for diploid organisms with two different alleles at a particular gene locus?
What is the term for diploid organisms with two different alleles at a particular gene locus?
Which statement best describes macroevolution?
Which statement best describes macroevolution?
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Study Notes
Hardy-Weinberg Equilibrium
- In a population of 500 wildflowers, the allele frequencies for the CR and CW alleles can be calculated using the Hardy-Weinberg equation.
Hardy-Weinberg Equation
- The Hardy-Weinberg equation is represented by: p² + 2pq + q² = 1, where p and q are the frequencies of the two alleles.
Hardy-Weinberg Equilibrium Conditions
- A gene pool is in Hardy-Weinberg equilibrium if it meets the following conditions: random mating, no mutation, no genetic drift, no gene flow, and infinite population size.
Evolutionary Changes
- Most evolutionary changes in a population are caused by genetic drift, mutation, gene flow, and natural selection.
- Genetic drift, mutation, and gene flow are factors that can result in evolutionary change in a population.
Genotype Frequency
- Genotype frequency refers to the proportion of individuals in a population that have a specific genotype.
Allele Fixation
- A fixed allele in a population means that it is the only allele present at a particular gene locus.
Heterozygotes
- Diploid organisms with two different alleles at a particular gene locus are called heterozygotes.
Macroevolution
- Macroevolution refers to the process of large-scale evolutionary changes that occur over a long period of time, resulting in the formation of new species.
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