3. Calculate: Punnett squares can be used to predict probable outcomes of genetic crosses. To calculate probability, divide the number of one kind of possible outcome by the total
number of all possible outcomes. For example, if you toss a coin, the chance it will land on
heads is equal to 1 - 2. This probability can be xpressed as 12, 0.5, or 50%.
Look at the Punnett square above.
A. How many total possible outcomes are there?
B. How many of the possible outcomes are for each of the following genotypes?I
PR PR
FW FW
FR EW
C. What is the probability for each of the following outcomes? (Record answers as both
fractions and percentages.)
PR FR
FW FW
FR FW