5 Properties of Single Loci

5.1 Allele and Genotype Frequencies

5.2 The Transmission of Genetic Information

5.2.1 The Hardy-Weinberg principle

5.2.2 Sex-linked loci

5.2.3 Polyploidy

5.2.4 Age structure

5.2.5 Testing for Hardy-Weinberg propertions

5.3 Characterizzing the influence of a Locus on the Phenotype

5.4 The Basis of Dominance

5.5 Fisher’s Decomposition of the Genetypic Value

5.6 Partitioning the Genetic Variance

5.7 Additive Effects, Average Excesses, and Breeding Values

5.8 Extensions to Multiple Alleles and Nonrandom Mating

5.8.1 Average excess

5.8.2 Additive effects

5.8.3 Additive genetic variance