Animal Genetic- Quantitative & Population Gennetic

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What is Broad-sense heritability?

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Broad-sense heritability (H^2) is the proportion of phenotypic variance in a trait that is attributable to genetic variance, including additive, dominance, and interaction effects.

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What happens to Broad-sense heritability if environmental variance increases?

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If environmental variance (V_E) increases while other variance components remain constant, Broad-sense heritability will decrease.

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What does a Broad-sense heritability value of 1 indicate?

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A value of 1 indicates that all of the phenotypic variance results from differences in genotypes.

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What does a Broad-sense heritability value of 0 indicate?

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A value of 0 indicates that all differences in phenotype result from environmental variation.

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What does a heritability value between 0 and 1 indicate?

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A heritability value between 0 and 1 indicates that both genetic and environmental factors influence the phenotypic variance.

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What is the significance of a correlation coefficient of -0.7 between rainfall and temperature?

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A correlation coefficient of -0.7 indicates a strong negative relationship, meaning that as temperature increases, rainfall tends to decrease.

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What is the effect of outcrossing on a population?

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Outcrossing increases genetic diversity and typically results in more heterozygotes than predicted by Hardy-Weinberg law.

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What is Hardy-Weinberg equilibrium?

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Hardy-Weinberg equilibrium is a principle that states that allele and genotype frequencies in a population will remain constant from generation to generation in the absence of evolutionary influences.

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What are the expected allele frequencies in a population with 10,000 normally pigmented rabbits and 1 albino rabbit under Hardy-Weinberg equilibrium?

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Under Hardy-Weinberg equilibrium, the expected frequencies are q = 0.01 (recessive allele) and p = 0.99 (dominant allele).

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What is the formula for calculating allele frequencies?

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The allele frequencies can be calculated using the formula: p + q = 1, where p is the frequency of the dominant allele and q is the frequency of the recessive allele.