Discussion:
Genetics Problem: Punnett Squares & Blood Types
A. APunnett Square represents a cross (mating) between a male (on the left side) with blood type AB, and a female, (top of square), with blood type A, genotype Ao.
Answer the following for the cross represented above.
1. What are the possible blood types for the offspring?
2. What are the ratios or percentages for each possible blood type from this cross?
3. What blood type is not possible from this cross?
B. Fill out two Punnett squares for a cross between a male with blood type B and a female with blood type AB. (Note that we do not know
if the father is genotype BB or Bo from the information given. Thus there are two solutions to the possible cross.)
Set up two Punnett squares and answer the following questions about them.
1. What are the possible blood types for the cross between the type B (BB or Bo?) male and AB female?
2. What are the percentages (%) or probabilities for each blood type in the offspring?
3. What blood type(s) would not be possible in a cross between these two parents?