Summary 6

First, a Punnett Square is a table used to predict the outcome of crossing different forms of a trait, and probability is how likely it is for something to happen. A pedigree is a chart used to trace the history of a family, like a family tree. To know how to use the Punnet square, you need to know that the male is up and the woman is in the left; to make the calculation, we are going to use letter G, but you can use whatever letter (remember that "G" is dominant and "g" is recessive)

As you can see, you need to conbinate the letters top right corner with lower left corner etc.
End.