Chapter 19, Problem 4P

In a cross of two pure-breeding lines of tomatoes producing different fruit sizes, the variance in grams (g) of fruit weight in the ${\text{F}}_1$ is $2.25$ g, and the variance among the ${\text{F}}_2$ is $5.40$ g. Determine the genetic and environmental variance ( ${\text{V}}_{\text{G}}$ and ${\text{V}}_{\text{E}}$) for the trait and the broad sense heritability of the trait.