Multiple Alleles
Mr. and Mrs. Smith had a child with type A blood. At the same time and in the same
hospital, Mr. and Mrs. Rogers had a child with type O blood. A week after they took
their children home, the Smith's became concerned that their baby did not look like either
one of them. They returned to the hospital and had their blood types checked along with
the Rogers.
Smith's Blood Types
Mr. Smith: A
Mrs. Smith
0
Roger's Blood Types
Mr. Roger: O
Mrs. Roger: AB
a) Work out all possible Punnett squares.
b) If they were the only couples to have babies in the hospital at that time, do they
have the correct babies? Explain.