Modeling a Punnett Square

Science Connection
The Punnett square below is an area model that shows the possible results of crossing two pink snapdragons, each with one red gene [b][i]R[/i] [/b]and one white gene [i][b]W[/b][/i]. Each parent snapdragon passes along only one gene for color to its offspring. Show how the square of a binomial can be used to model the Punnett square.
Solution
Each parent snapdragon has half red and half white genes. You can model the genetic makeup of each parent as [math]0.5R+0.5W[/math]. The genetic makeup of the offspring can be modeled by the product [math]\left(0.5R+0.5W\right)^2[/math].[br][br][math]\left(0.5R+0.5W\right)^2=\left(0.5R\right)^2+2\left(0.5R\right)\left(0.5W\right)+\left(0.5W\right)^2[/math][br][br]    [math]=0.25R^2+0.5RW+0.25W^2[/math][br][br]   (Red) (Pink) (White)[br][br][br][color=#ff0000]25% of the offspring will be red, 50% will be pink, and 25% will be white.[/color]

Information: Modeling a Punnett Square