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Questions and Answers
What can be inferred about individuals in a population with the same parents?
What can be inferred about individuals in a population with the same parents?
Why are no two individuals alike in a population?
Why are no two individuals alike in a population?
What aspect contributes significantly to the uniqueness of individuals in a population?
What aspect contributes significantly to the uniqueness of individuals in a population?
Which statement is incorrect about individuals with the same parents?
Which statement is incorrect about individuals with the same parents?
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How does genetic variation arise in a population?
How does genetic variation arise in a population?
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How can the genetic properties of a population be altered?
How can the genetic properties of a population be altered?
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What does the genetic variation in a population depend on?
What does the genetic variation in a population depend on?
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Which factor does not contribute to changes in genetic properties of a population?
Which factor does not contribute to changes in genetic properties of a population?
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Which statement is true about gene sampling in a population?
Which statement is true about gene sampling in a population?
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What is the effect of population size on genetic properties?
What is the effect of population size on genetic properties?
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Study Notes
Genetic Variation
- No two individuals are alike even when they have the same parents due to the large number of possible combinations of genes during mating.
Population Genetics
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Changes in Population Allele Frequencies:
- Population Size: The genes passed from one generation to the next are a sample of the genes in the parent generation.
- Selection: Genotypes in the newly formed zygotes may have different survival rates.
- Migration and Mutation: Gene frequencies can be changed by immigration of individuals with different allele frequencies, and by gene mutation.
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Ideal vs. Real Populations
- The descriptions above represent an idealized situation that may never happen.
- Real situations can be compared to the ideal.
- Deviation from equilibrium indicates how a population is changing.
Recessive Phenotype Frequency
- The frequency of a recessive phenotype can often be determined by counting individuals with the recessive phenotype in a sample of the population.
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Description
Test your knowledge on genetic variation, population allele frequencies, and the factors affecting them. Understand the differences between ideal and real populations and the significance of recessive phenotype frequencies in genetics.