Heritability of quantitative traits

What is broad-sense heritability? Where does broad-sense heritability come from? How do additive alleles, dominance relationships, and epistasis contribute to the genetic variance? What is the difference between broad-sense heritability and narrow-sense heritability?

This video lecture was recorded at the University of Wisconsin -- Stout in the fall of 2021. It accompanies my BIO 332 Genetics course, which was taught with Hartl's "Genetics: Analysis of Genes and Genomes."